英语词根词缀
说明：* 表示重要；在重音模式标注中，一个“-”代表一个音节。
1. *a- [Latin] 1) see ab-
[Greek] 2) not, without [an- before a vowel]: amoral, anarchy, acentric, asocial, apolitical, anarchism
[English] 3) at, on, in, intensive: aback, afloat, abed, ablaze, aloud, asleep, abreast
2. *ab- away [a- before m, p, v; abs- before c, t]: abdicate, abduct, abjure, abominable, avert, abstract, absorb, abnormal, abuse, abaxial
3. *–ability n. of adj. ending in –able: stability, changeability, adaptability（重音a’bility）/[biliti/
4. *–able [often -ible after t, s]1) that can ~: perishable, changeable, adaptable 2) that can be ~ed: provable, expendable, readable, irresistible 3) full of ~: knowledgeable 4) [added to stems]: capable, probable（通常不影响重音，但’reconcile→irrecon’cilable）
5. *-ably adv. of adj. ending in –able: peaceably, comfortably, suitably (通常不影响重音)
6. *ac- see ad-
7. *–ac 1) characteristic of: elegiac, demoniac 2) of, relating to: cardiac 3) affected by, having: maniac (both adj. and n.) （重音’- - ac）/Ak/
8. –acal =-ac adj. maniacal （重音’- acal）/[k[l/
9. acantho- thorn [acanth- before a vowel]: acanthoid
10. –acea用于动物纲名、目名: Crustacea（重音’acea）/eiFi[/
11. –acean 1) adj. of words ending in –acea or –acea (=aceous) 2) a member of the stated category: Crustacean（重音’acean）/eiFi[n/
12. –aceae 用于植物科名: Pinaceae （重音’aceae）/eisii:/
13. –aceous 1) adj. of words ending in –acea or –acea: Crustaceous 2) adj. [added to stems]: curvaceous, herbaceous （重音’aceous）/eisi[s/
14. –acerb- bitter, violent: acerbic, acerbity, exacerbate
15. aceto- 醋酸 [acet- before a vowel]: acetic, acetate
16. *–acious adj. characterized by, inclined to, full of: tenacious, fallacious, rapacious, sagacious, veracious （重音’acious）/eiFi[s/
17. *–acity n. of words ending in –acious: tenacity, sagacity, rapacity, veracity (重音’acity) /Asiti/
18. *–acle n. thing: spectacle, obstacle, manacle, tentacle, pentacle (不影响重音)
19. acou- listen: acoustic, acouophone
20. acri- sour, sharp: acrimonious, acrimony
21. *acro- 1) pointed: acrocephaly 2) topmost: acronym, acrobat, acrophobia
22. actino- of rays: actinotherapy, actinogram
23. acu-, acut- sharp: acute, acupuncture, acumen
24. *–acy n. [esp. of adj. ending in –ate] quality, position, condition: accuracy, obstinacy, determinacy, privacy, intimacy (不影响重音)
25. *ad- motion towards, addition to, nearness to, intensive
[ab- before b]: abbreviate
[ac- before c, k, qu]: acquit, accept, accustom, account, accredit, accompany
[af- before f]: afforest, affright, affix, affirm
[ag- before g]: aggravate, aggression, aggrandize
[al- before l]: alleviate, allude
[an- before n]: annotate, annex, announce
[ap- before p]: appoint, appropriate, appraise, appease
[ar- before r]: arrest, arrive, arrange, arrear
[as- before s]: assess, assault, assimilate, assure, associate
[at-before t]: attire, attest, attune, attract
[a- before sc, sp, st]: ascend, aspire, astringent
[ad- before h, j, m, v] admonish, adhere, adjacent, advertise, adjust, admixture, adventure
26. –ad [Greek] 1) the name of certain collective numerals: dyad, monad 2) the title of any of certain poems: Iliad 3) any of certain plants: cycad
[Latin] 4) adv. towards, in the direction of: caudad (不影响重音)
27. *–ade 1) the act of ~ing: blockade 2) result or product: arcade 3) participants in an action: brigade 4) drink made from: lemonade （重音: ‘ade）/eid/
28. adeno- gland or glands [aden- before a vowel]: adenoma, adenoid
29. adip- fat: adipose
30. *aer-, aeri-, aero- air: aerate, aerogram, aerospace, aerosphere, airy, aerial, aerodrome, aerolith, aerial, aerify, aerology
31. *af- see ad-
32. *Afro- African: Afro-American
33. *after- coming behind or later: aftertaste, aftermath, aftercare, afterlife
34. *ag- see ad-
35. *–ag-, -ig-, -agit- (frequentative), -act- do, drive, make: agent, agenda, activate, agitate, enact, actual, activism, activity, counteract, exact, exacting, inactive, inaction, interact, react, transact, agency, agile, agility, litigate, navigate
36. *–age n. 1) action, condition, or result of: marriage, cleavage, usage, shrinkage 2) amount or number of: acreage, mileage, percentage 3) cost of: postage, freightage, wharfage 4) place of: steerage, village, anchorage 5) collection of: peerage, package, wrappage 6) home of: hermitage, orphanage 7) loan words from French: savage, voyage (不影响重音)
37. –agog-, -agogue 1) leader: demagogue 2) a substance that induces the secretion of: galactagogue （重音’- agogue）
38. –agon- contend agony, agonize, antagonist, protagonist
39. *agri-, agro- [agr- before a vowel] field: agriculture, agrarian, agrology, agricorporation, agronomy, agrobiology, agro-town, agrestic, agrochemicals
40. –ain n. 1) person: villain, captain, chieftain 2) thing: quatrain (不影响重音)
41. *–aire n. 1) person: millionaire, doctrinaire 2) thing: questionnaire （重音’aire）/Z[/
42. *al- [Arabic] 1) used in words of Arabic origin: algebra, alchemy
[Latin] 2) see ad-
43. *–al 1) adj. of, like, or suitable for: hysterical, theatrical, personal, national, natural, exceptional 2) n. the act or process of: arrival, rehearsal, recital, appraisal, overthrowal 3) 醛: furfural 4) 巴比土酸盐: barbital （重音：一般不影响重音，但如果前面拼写是双辅音或发音是双元音，重音则为’ – al; 另外，若前面为ic，则重音为’ - ical）
44. alacri- quick: alacrity
45. alb- white: albino, album, albumen
46. –algia pain: odontalgia, nostalgia, neuralgia （重音’algia）/AldVi[/
47. ali- another, other: alias, alibi, alien
48. *–ality: n. of adj. ending in –al: mentality, morality, logicality, formality, technicality （重音’ality）/Aliti/
49. *–ally adv. of adj. ending in –al: actually, politically, climaticaaly, heroicaaly, conditionally
50. *-alter- the other: adultery, adulterate, alternate, alternative
51. *–alt- high: altitude, exalt, alto, altar, altimeter, altimetry, altocumulus
52. *–am-, -amor-, -amat- love: amity, amorous, amatory, amour, paramour, amateur, amateurish
53. *ambi- both, around: ambidextrous, ambience
54. *–ambul- walk: ambulance, preamble, somnambulism, ambulant, perambulate, ambulate, noctambulant
55. –amen- as one wishes: amenity, amenable
56. –amic- friend: amicable
57. amphi- two: amphibian, amphitheater
58. –ampl- large: ample, amplify, amplifier
59. amylo- 淀粉: amyloid
60. *an- 1) see a- 2) see ad-
61. *–an n. and adj. 1) (one) belonging to or having some relation to: diocesan 2) (one) born in or living in: Mexican, African, European 3) (one) believing in or following: Lutheran, Mohammedan (通常不影响重音，但’ean /i:[n/)
62. *ana- 1) up, upward: anadromous 2) back, backward: anagram 3) again: Anabaptist 4) throughout: analysis 5) according to, similar to: analogy
63. *–ana sayings, writings, anecdotes, facts, or objects of: Americana, Victoriana （重音’ana）/ana/
64. *–ance n. 1) the act or process of: discontinuance, resistance, attendance, guidance 2) the quality or state of being: forbearance, vigilance 3) a thing that ~s: hindrance 4): a thing that is ~ed: utterance (通常重音’ - - ance，但如果前面拼写是双辅音或发音是双元音，重音则为’- ance)
65. –ancill- maidservant: ancillary
66. *–ancy =ance [but different words may take different endings]: buoyancy, expectancy, occupancy, conservancy, elegancy, militancy (通常重音’ - - ancy，但如果原词末尾发音是双辅音或双元音，重音则为’- ancy)
67. –and see -end
68. *–andr- male, man: polyandry, androgynous, android
69. –androus having the stated number of stamens: monandrous
70. –ane 1) 饱和烃: methane, ethane 2) 某些环状化合物: cyclohexane
71. *–aneity n. of adj. ending in –aneous: spontaneity, spontaneity, contemporaneity （重音’eity）/i:[ti/
72. *–aneous adj. of a certain quality: extraneous, spontaneous, instantaneous, miscellaneous （重音’aneous）/eini[s/
73. angio- blood vessel: angiomatosis
74. *Anglo- Britain: anglophile, Anglophobia, Anglo-American
75. *–anim- 1) spirit, breath, life, mind: animal, animate, inanimate, animism, unanimous, magnanimous, longanimity, exanimate, reanimate, animated 2) hostility: animosity
76. *–ann-, -enn- year: annual, annuity, biannual (twice a year), annals, anniversary, annalist, annuity, annuitant, superannuate, biennial (once very two years), perennial, millennium
77. *-ant [adj. or n. of n. ending in –ance or –ancy] 1) adj. that has, shows or does: defiant, radiant, vigilant, determinant, assistant, repentant 2) n. a person or thing that: occupant, accountant, insurant, informant, coolant, stimulant (通常重音’ - - ant，但如果前面拼写是双辅音或发音是双元音，重音则为’- ant)
78. *ante- before, in front of: anteroom, antecedent, antenatal
79. –anth- flower: anthology, chrysanthemum
80. *-anthrop- humankind: anthropology, philanthropist, paleoanthropology, anthropoid, misanthropy, anthropotomy
81. *anti- [ant- before a vowel] against, the opposite: Antarctica, antibiotic, antihero, antiwar
82. api- bee: apiary
83. apo- [ap- before a vowel or h] away from: apogee, apology, apostasy, aphelion
84. –apt- fit, suitable: aptitude, adapt
85. *–aqua-, -aque- water: aquarium, aqueous, aquatic, aqualung, aqueduct, aquiferous
86. aquil- eagle: aquiline
87. *–ar 1) adj. of, relating to, like, of the nature of: singular, polar，similar, insular, nuclear 2) n. the agent of a particular action =-er: registrar, scholar, beggar, liar, pedlar (不影响重音)
88. –arbitr- judge: arbitrate, arbitrary
89. arc- arch: arcade
90. *arch- chief: archenemy, archbishop
91. *–arch- rule, ruler: monarch, monarchy, anarchy, autarchy, gynarchy, oligarchy, patriarchy, matriarch, plutarchy
92. archaeo-, archeo- ancient: archeology, archeologist
93. -ard-, -ars- burn: ardent, ardor, arson
94. *–ard, -art person or thing [often derog.]: braggart, tankard, drunkard, laggard, Spaniard, coward, wizard (不影响重音)
95. *–arian n. or adj.1) (one) characterized by or having: octogenarian, centenarian 2) (one) believing in: Unitarian, utilitarian, vegetarian 3) (one) associated with: antiquarian, agrairian（重音’arian）/e[ri[n/
96. *–arium place or container: aquarium, planetarium, sanitarium, ovarium （重音’arium）/e[ri[m/
97. *-arm- arms: armament, armistice
98. *-art- art, skill: artifice, artifact, artisan
99. arteri- of artery: arteriosclerosis
100. arthr- of joints: arthritis
101. –articul- joint: articulate, articulation
102. *–ary: 1) adj. relating to, connected with: ordinary, contemporary, military, urinary, imaginary, elementary 2) n. a person or thing connected with: adversary, dictionary, secretary, notary, missionary, dignitary （通常重音British: ‘- - ary, American: ‘- - ‘ary, 但如果前面拼写是双辅音或发音是双元音，重音则为’ - ary）
103. –ase enzyme: amylase /eis/
104. –asper- rough: asperity, exasperate
105. –ast person (corresponding to words ending in -asm): enthusiast, gymnast（重音’- - ast）
106. *–aster-, -astr- star: asteroid, disaster, astronomer, astrology, astrodog, astronaut, astrophysics, astral, asterisk, asteroid
107. –aster person of the stated kind (derog.): poetaster, medicaster, philosophaster
108. *–ate v. 1) to become: evaporate, maturate 2) to cause to become: invalidate, rejuvenate, differentiate 3) to form or produce: ulcerate 4) to provide or treat with: vaccinate, hypenate 5) to out in the form of, or form by means of: delineate 6) to arrange for: orchestrate 7) to combine, infuse or treat with: oxygenate （通常重音’- - ate /eit/）
109. *–ate adj. 1) of or characteristic of: collegiate, corporate, roseate 2) having or filed with: passionate, proportionate, affectionate 3) roughly corresponding to p.p ending in –ed animate, determinate （通常重音’- - ate /it/）
110. *-ate n. an office, function, agent, official or group of officials: potentate, directorate, advocate, candidate 2) the land, territory, or dominion of: priorate, sultanate 3) a person or thing that is the object of: legate, mandate 4) [in chemistry] slat made from any of certain acides with names ending in –ic: nitrate, carbonate, borate 5) [in chemistry] a result of some process: distillate （通常重音’- - ate /it/）
111. –athlon an sports event or activity for collecting money: decathlon, talkathlon
112. *–atic adj. of n. ending in –ate, -cy, -m or after a root: climatic, ecstatic, aquatic, systematic （重音’atic）/Atik/
113. *–ation n. of v. ending in –ate or –te [action, condition or result]: animation, invitation, variation, quotation, examination （重音’ation）/eiF[n/
114. *–ative adj. of n. ending in –ation: speculative, illustrative （重音与原动词同，但如果前面拼写是双辅音或发音是双元音，重音则为’ - ative）
115. *–ator doer: educator, instigator （重音与原动词同）
116. *-atory 1) adj. of some n. ending in –ation: explanatory, derogatory, preparatory 2) n. place: conservatory, laboratory, lavatory (通常重音英音’ - atory，美音’ – a’tory；英音la’boratory，美音’labora’tory )
117. atmo- air: atmosphere
118. -atroc- cruel: atrocity, atrocious
119. atropho- atrophy: atrophoderma
120. –audac- bold: audacity, audacious
121. *–audi-, -audit-, audio- listen: audio, audit, audition, auditorium, audible, inaudible, auditor, audiometer, audiology, audiovisuals
122. *–aug-, -auct- increase: augment, auction, auctioneer
123. *–augur- sign, herald: augury, inaugurate, augural, inauguration
124. aur- ear: auricle, auricular
125. *Austro- Austrian: Austro-Hungarian
126. *–author- right, author: authoritative, authorship, authority, authorize, unauthorized
127. *auto- [aut- before a vowel] self: autism, autograph, autobiography, autarchy
128. –auxili- help: auxiliary
129. –avi- bird, flight: aviation, aviator, avian, aviary, aviculture
130. –avuncul- uncle: avuncular
131. *back- backward: backslide, backfire, backpedal, backdate
132. bacteri- bacteria: bactericide
133. -barbar- savage: barbarous, barbarism, barbaric
134. baro- pressure: barometer, barometric, baroscope, isobar
135. –bas- low: abase, basement, debase
136. basi-, baso- of the base, of alkalis: basophilia
137. *–bat- beat, strike: battle, combatant, noncombatant, combat, battle
138. bathy- deep, sea: bathysphere
139. *be- 1) treat in the stated way [added to n. and adj.]: befriend, belittle, becalm, befool 2) around: besiege, beset 3) furnish with, cover with: besprinkle, becloud, bedew 4) wearing: bespectacled, bewhiskered 5) completely, thoroughly: bedeck, besmear 6) away: bereave, betake, behead 7) about [added to other verbs, making them into vt.]: bethink, bemoan, befall
140. beat- happy: beatific, beatitude
141. *–bel-, -bell- war, fight: rebel, rebellious, bellicose, belligerent
142. *bene- well, good: benediction, benefactor, benefit, benevolent
143. benzo- 苯: benzene
144. *bi- two: bicycle, binary, bilingual, biweekly
145. *–bi-, -bio- life: biology, biography, amphibian, autobiography, biotic, antibiotic, biosphere, biochemistry, bioclean, bioelectricity
146. bili- of bile: bilirubin
147. *biblio- book: bibliography, bibliophile, bibliomania, Bible
148. blasto- 胚，芽: blastoderm
149. *-bon- [positive] good; -melior- [comparative] better; -optim- [superlative] best: bonus, ameliorate, optimist, optimize
150. *–bound: 1) kept in the stated condition: snowbound 2) moving in the stated direction: westbound （不影响重音）
151. brachy- short: brachydont
152. –brad-, -bras- scrape: abrade, abrasive
153. –brady- slow: bradycardia
154. –brev- short: brief, abbreviate, brevity, debrief, breviary
155. bronch- 气管: bronchitis
156. *by- of less importance: byproduct, bypass, byroad, byname
157. *caco- bad, ugly: cacophony
158. *–cad-, -cid-, -cas- fall: cadence, occasion, accident, incident, decadence, coincide, casual, casualty, occident, incidental, coincidence, deciduous
159. –calci- calcium: calcify, calcine
160. –calcul- calculate: calculation
161. –calor- heat: calorie, calorify, calorific, calorimeter
162. can- dog: canine
163. *–cant-, -cent- song, sing: canto, incantation, decant, accent
164. –cap-, -capac- contain: capable, capacity
165. *–capt-, -cept-, -ceive-, -ceipt-, -ceit-, -cip-, -cipi- take: captive, accept, deceive, deception, recipient, anticipate, conceivable, incipient, receipt, deceit, conceit, interception, incept
166. *–capit- head: capital, decapitate, capitalize
167. –carcer- prison: incarceration
168. *–card-, cardio-, -cardia heart: cardiotonics, carditis, tachycardia, carditis, cardiac, electrocardiogram, tachycardia, epicardium, endocardium
169. *–carn- flesh: carnal, carnivore, incarnate
170. carpo- fruit: carpophagous, carpology
171. *cata- [cat- before a vowel]1) down, downward: catabolism 2) away, completely: catalysis 3) against: catapult 4) throughout: cataphresis 5) backward: cataplasia
172. -caten- chain: concatenate
173. caus- burn: causalgia
174. –caut- careful: cautious, precaution
175. *–ced-, -ceed-, -cess- 1) yield: cede, concede, concession 2) go: proceed, precede, exceed, excessive, supersede, precedent, unprecedented, procedure, process, procession, success, succeed, intercession
176. cel- sky: celestial
177. –cele swelling: hydrocele
178. –celebr- : celebrity, celebrate
179. –celer- fast: accelerate, decelerate, celerity, accelerometer, decelerometer, acceleration
180. celio- abdomen: celiotomy
181. cell- cell: cellular, celluase, cellue, celluate
182. *cent- 100: century
183. *centi 1/100: centimeter
184. –centesis 穿刺术: cardiocentesis （重音cen’tesis）/s[nti:sis/
185. *centri- center: centrifugal, concentric, eccentric
186. cephal- head: cephalalgia
187. cerato- horn or horny: ceratoid
188. -cerebr- brain: cerebration, cerebritis
189. –cern-, -cret- see: discern, secret
190. cero- [cer- before a vowel] wax: ceraceous, cerate
191. *–cert- certain: certify, certificate, ascertain, certitude, certifiable, certification, incertitude
192. –chem-, chemo- chemistry: alchemy, chemophysiology
193. chiro- hand: chirospasm
194. chloro- 绿色，氯气: chlorosis
195. cholo- bile: cholochrome
196. chondr- 软骨: chrondritis
197. *–chrom-, -chromat- color: chromosome, chromatic, monochrome, polychrome, photochrome, homochromous, panchromous
198. *–chron- time: chronology, chronicle, anachronism, chronic, synchronal, synchronize, synchronoscope, chronometer, isochronism
199. chrys- yellow: chrysanthemum
200. *–cid-, -cis- kill, cut: incisive, decide, excision, suicide, decision, concise, precise, incision, incisor, excision, circumcise, insecticide
201. –cinct- gird, surround: cincture
202. cine- of films or the film industry: cinecamara
203. *circum- around: circumlocution, circumspect, circumference, circumfluence, circumaviate
204. *–circ- circle: circular, circus, circulate, encircle, circuitous
205. cirri- [cirr- before a vowel] tendril: cirrose, cirrus
206. cis- on this side of: cisatlantic, cisalpine
207. citr- lemon or orange: citrate, citrus
208. *–civ- citizen: civil, civility, uncivil
209. –civil- of citizens: civilize, civilian, civilization
210. *–clam-, -claim cry, shout: exclaim, exclamation, declaim, reclaim, proclaim, declamatory, clamor, clamorous,acclaim
211. *–clar- clear: clarify, declare, clarity
212. –clim- zone, region: climate, climatic, acclimatize
213. *–clin-, -cliv- slant: acclivity, declivity, recline, decline, inclined, inclination, declension, disincline, isoclinal
214. *–clud-, -clus-, -clos- close [v]: conclude, disclose, seclusion, recluse, occlude, preclusion, exclusive, include
215. *co- see con-
216. cocci-, cocco- 小球状，浆果: coccus
217. –coct- cook, make: decoction
218. *–cogn-, -cogit- cogitate, cognitive, recognize, recognition, cognize, incognizable, precognition
219. *col- see con-
220. –col neck: collar, accolade
221. –colon- farmer: colonial, colonize
222. *com- see con-
223. *con- together, intensive:
[co- before a vowel] co-ed, cooperation
[col- before l] collaborate, collocate
[com- before b, m, p] compose, combine, communicate, commiserate
[cor- before r] correct, corrupt, correlation, corrugate
[otherwise con-] contend, consign, concentric, contemporary
224. –concil- reconcile, conciliatory
225. *contra-, counter- against: contraception, contradiction, counteract, counterbalance, counterattack
226. copi- abundance: copious
227. copro- garbage: coprology, coprolite
228. –copul- link: copulate, copula, copulative
229. *–cord- heart: cordial, accord, concord, discordant, record
230. –coron- crown: coronation
231. *–corp-, -corpor- body: corpus, corporeal, incorporate, corporation, corpulent
232. –cosm- universe: cosmos, cosmic, microcosm, cosmology, acosmism, cosmopolitan, macrocosm
233. –count- tell: account, accountable, recount
234. *–cracy rule: democracy, autocracy, bureaucracy, plutocracy, theocracy, monocracy, mobocracy （重音’ - cracy）
235. *–crat ruler, supporter: democrat, autocrat, bureaucrat, technocrat （重音’- - crat）
236. *-cratic adj. of n. ending in –cracy: technocrat, aristocratic （重音’cratic）
237. *–craft skill: woodcraft, statecraft （不影响重音）
238. cranio- skull: cranial, craniology, craniotomy, cranium
239. –crem-, -cremat- burn: cremate, crematorium
240. –cre- create: creation, creative
241. *–cred- believe: credit, incredible, credulous, creditable, discredit, accredit, credential
242. *–cresc-, -creas-, -cret-, -crue increase: crescent, decrease, concrete, accretion, accrue
243. *cross- across: cross-cultural
244. –cruci- cross: crucify, excruciating, crucifixion
245. cryo- cold, freeze: cryobiology, cryogen, cryometer, cryophilic, cryosurgery, cryogen, cryogenics, cryoprobe, cryoscope
246. crypto- [crypt- before a vowel]: crypto-Communist, cryptic, cryptogenic, cryptogram, cryptology
247. crystallo- 结晶: crystalline
248. *–cub- lie down: cubicle, incubate, incubation, incubus, concubine, concubinage, decubitus
249. –cus- cause: accusative, excuse, accusation
250. *–cult- till [v]: cultivate, culture, culture, cultural, agriculture, arboriculture, pisciculture, mariculture
251. –cumul- accumulate: cumulative, accumulator
252. cupro- of copper: cupric, cupronickel, cuprous
253. –cupid- greedy: cupidity
254. –cur- care: secure, procure, curator
255. *–cur-, -curs-, -cour-, -course run: precursor, course, discourse, recur, occurrence, discursive, current, currency, excurse, excursion, concourse, succor, cursory, incursion, concur, recur
256. –custod- guard: custody
257. *-cy quality, condition, state, position: infancy, idiocy, captaincy, bankruptcy （不影响重音）
258. cyano- 青紫: cyanuria
259. *–cycl- circle: cyclist, bicycle, tricycle, cyclone, cycloid, hemicycle, autocycle, recycle, cyclotron, recyclable
260. cysti- bag, bladder: cystitis
261. -cyt- empty container, cell: histocyte, cytochemistry
262. –damn-, -demn- condemn: damnabe, indemnity
263. *de- 1) away from, off: debar, derail, deduct, defer, define, detrain, dethrone 2) down: degrade, decline, decadent, depress, devalue 3) wholly, entirely: defunct 4) reverse the action of; undo: defrost, decode, desalt, deforest
264. *deca- decem- ten: decathlon, decagon, decameter
265. *deci- 1/10 decimeter, decimate, deciliter
266. –decor- beauty, grace: decorate, decorous
267. *demi- half: demigod, demi-fixed
268. dendr- trees: dendroid, dendrolite, dentrology
269. –dent- tooth: dentist, dental, dentistry, denture, dentoid, trident, indent, denticle
270. –dens- dense: condense, density
271. deoxy- 脱氧: deoxidize, deoxygenate
272. –derm-, -dermat- skin: dermatosis, dermatitis, dermal, dermatitis, hypoderm, dermatology
273. des- =dis- [medical]: desinfection
274. desmo- 丝带状: desmobacteria
275. –dexter-, -dextr- right hand: ambidextrous, dexterous, dexterity, dextrorotation, dextral
276. *di- 1) see dia- 2) see dis- 3) two: disyllable, dioxide
277. *–di- day: diary, diarist, dial, meridian, antemeridian, postmeridian
278. *dia- [di- before a vowel] across: diagonal, diameter, dialogue
279. *–dic- declare: dedicate, abdicate, indicate
280. *–dict- say: diction, predict, indictment, dictatorship, contradict, contradiction, contradictory, benediction, edict, Dictaphone
281. *dif- see dis-
282. –digit- finger: digital, digitalize
283. -dign- worthy: dignity, dignitary
284. *dis- [in words of Latin origin; di- before b, d, g, l, m, n, r, v; dif- before f] 1) away, apart from: dismiss, disperse, dispel, differ, divulge, digression 2) deprive of, expel from: disbar, disfrock 3) cause to be the opposite: disable 4) fail, cease, refuse to: disallow, disappear, dissatisfy, discontinue, disbelive 5) do the opposite of: disjoint, disintegrate, disarm 6) not [added to adj.]: dishonest 7) opposite off, lack of [added to n.]: disease, disunion, disorder, discomfort
285. –disc- learn: disciple, discipline
286. –dat-, -dit- give: dative, tradition, edit, editor, extradite, extradition
287. –doc-, -doct- teach: doctor, doctrine, doctorate, doctrinism, doctrinaire, indoctrinate, docile, indocile, document, docent, documentary
288. dodeca- twelve: dodecagon, dodecastyle
289. dolich- long: dolichofacial
290. -dolor- pain: dolorous
291. –dom- house: domestic, domesticate, domicile, dome, domicile, domiciliate, domesticity
292. *–dom state, realm, condition: freedom, stardom, martyrdom, wisdom, serfdom, kingdom （不影响重音）
293. *–domin- master: dominate, predominant, domineer
294. –don- give: donate, pardon, donor, donee, condone, condonation
295. –dorm-, -dormit- sleep: dormitory, dormancy, dormitive, dormant
296. dorsi-, dorso- of, on, or long the back: dorsal, dorsum, dorsovelar
297. *down- downwards: downstairs, downpour, downfall
298. –drom- run: aerodrome, motordrome, hippodrome, prodrome, syndrome, dromometer
299. –dub-, -dubit- doubt: dubious, indubitable
300. *–duc-, -duct- lead: conduce, conduct, deduce, induce, seduce, product, educate, educable, introduce, introductory, misconduct, produce, abduct, aqueduct, viaduct, reduction
301. *du- two: duplicate, dual, duality, duel, duad, duplex, duet, duplicity
302. –dur- hard: duration, endure, obduracy
303. *-dyn-, –dynam- power: dynamic, dynamite, aerodynamics, dyne, dynast, dynasty, electrodynamics, hydrodynamics, dynamo, adynamic
304. –dynia pain: gastrodynia
305. dys- bad [medical] dyspepsia, dysuria, dysphonia
306. *e- see ex-
307. *–ean adj. of n. ending in –pe, -re, etc: European, epicurean, Mediterranean （重音’ean）
308. *ec- see ex-
309. eco- of ecology: ecosystem, ecological
310. –ectasis expansion: bronchiectasis （重音’asis）
311. ecto- outer: ectoderm
312. –ectomy cut: appendectomy
313. –ed- eat: edible, edacious, inedible
314. *–ed 1) past participle: stopped 2) provided or characterized by: spectacled, moneyed, gifted, bearded, skilled 3) adj. from verbs, nouns and adj ending in –ate: cultured, liberated, fixed, confirmed, retired （不影响重音）
315. -edi- build: edify, edifice
316. *–ee 1) someone who is ~ed: referee, trustee, addressee，interviewee, employee 2) someone who ~s: absentee, refugee, retiree, devotee 3) person: townee, grandee 4) thing: goatee, settee （重音’ee）/i:/
317. *–eer 1) n. person engineer, auctioneer, pamphleteer, volunteer, mountaineer 2) v. domineer, commandeer, profiteer, electioneer （重音’eer）/i[/
318. *ef- see ex-
319. *–ego- I: ego, egoist, egoistic, egocentric, egomania, egotist
320. *–eity: n. of adj. ending in –eous: spontaneity, homogeneity （重音’eity）
321. *-el n. person or thing: model, runnel, parcel, personnel, sentinel, novel
322. *electro- electricity: electrocute, electromagnet
323. *-em-, -am-, –empt- take, buy: example, exemplar, exemplary, exemplify, sample, sampler, exemption, redeem, exemptible, redeemable, redemption, irredeemable, peremptory, redemption, exempt
324. –emia blood: anemia, leukemia （重音’emia）
325. *–emper-, -imper- command: emperor, empire, emperorship, imperious, imperial, imperative, imperialism
326. –emul- equal: emulate, emulous
327. *en- [em- before b, m, p; sometimes in-]: 1) to put or get into or on: enthrone, enplane, encase, entrap, embody 2) to cover or wrap with: enrobe, embalm, embank 3) to make, make into or like, cause to be with [added to n, and adj.]: empower, enrich, enliven 3) intensive: encourage
328. *–en 1) become or cause to become [added to n. and adj.] v: weaken, whiten, deepen, broaden, soften, quicken 2) adj. made of: wooden, woolen, leaden, waxen, earthen （不影响重音）
329. *-ence act, fact, quality, state, result or degree: conference, excellence, existence, insistence, dependence, confidence, innocence, despondence (通常重音’ - - ence，但如果原词末尾发音是双辅音或双元音，重音则为’- ence)
330. *-ency =-ence (but used with different words): urgency, persistency, frequency, efficiency, emergency, insolvency (通常重音’ - - ency，但如果原词末尾发音是双辅音或双元音，重音则为’- ency)
331. –end: [also -and] n. mostly mathematical terms: dividend, multiplicand, minuend, addend, subtrahend, legend, errand （不影响重音）
332. endo- inner: endocrine, endogamy
333. –enne used in n. denoting female: comedienne, tragedienne （重音’enne）/en/
334. *-ent [adj. or n. of n. ending in –ence or –ency] 1) adj. that has, shows or does: existent, dependent, confident, excellent 2) n. a person or thing that: president, resident, patient, detergent, solvent (通常重音’ - - ent，但如果前面拼写是双辅音或发音是双元音，重音则为’- ent)
335. entero-: intestines: enteritis
336. ento- inner: entoderm
337. entomo- insect: entomology
338. *–eous adj.: homogeneous, courageous, righteous, courteous （重音’- eous）/i[s/
339. *epi- above, beyond, before, after, between: epidemic, epidermis, epitaph, episode
340. –epistol- letter: epistle, epistolary
341. *–equ-, equi- equal: equality, equilibrium, equable, equivalent, equivalence, equate, equation, equidistance, equator, equilibrium, equatorial, equanimity, equivocal, equivocation, equilateral
342. equ- horse: equine, equestrian
343. *–er 1) comparative: bigger, earlier 2) agent of an action, person or thing [also –ar, -or]: reader, washer, lighter, silencer, boiler 3) wind: norther, souther 4) someone related to [-yer after w]: hatter, banker, tinner, lawyer, sawyer 5) resident of some place: New Yorker, Icelander 6) repeated or continuous action: clatter, sputter, stutter, chatter（不影响重音）
344. *–ern 1) adj. of n. of directions: eastern, northern 2) place: cavern, saltern, lectern （不影响重音）
345. –err- wander: error, erratic, errant, aberrant, inerrable, aberration
346. *–ery 1）place: fishery, brewery, tannery, monastery 2) act: bribery, surgery, robbery 3) product or goods: pottery 4) state or condition: slavery, drudgery（不影响重音）
347. erythr- red: erythremia
348. *es- see ex-
349. *–esc- becoming: acquiescent, convalescent, crescent, adolescent
350. *–esence the process of becoming or beginning: obsolescence, adolescence （重音’escence） /es[ns/
351. *–escent: 1) giving off light or showing a color: phosphorescent 2) adj. of n. ending in –escence: convalescent （重音’escent） /es[nt/
352. *–ese n. or adj. f nationality or language: Chinese, Vietnamese, officialese （重音’-ese）/i:z/
353. –esque adj. arabesque, Kafkaesque （重音-esque）/esk/
354. –ess indicating being a female: waitress, poetess, goddess （不影响重音）
355. *–est 1) superlative: biggest 2) old form of 2nd person singular [or -st]: wanderest, dost （不影响重音）
356. *–et n. diminutive: eaglet, packet, circlet（不影响重音）
357. –eth old form of 3rd person singular [or -th]: riseth, doth （不影响重音）
358. *ethno- nationality [ethn- before a vowel]: ethnography, ethnic
359. *–etic adj. of n. ending in –esis or –y: mimetic, pathetic, antipathetic, epileptic, theoretic, energetic （重音’etic）/etik/
360. *–ette female or diminutive: novelette, cigareete, typette（重音’ette）/et/
361. *–ety n. piety, propriety, sobriety, gayety, variety（重音’- ety）/[ti/
362. *eu- good: eulogy, eulogize, euphonious, euphemism, eugenics, euphonious
363. –eur person: amateur, litterateur, saboteur （重音’eur）/[:/
364. *Euro- European: Europarliament
365. *–ev- age, time: primeval, medieval, longevity, coeval
366. *ex- 1) forth, from, out 2) beyond 3) away from 4) thoroughly 5) upward 6) without, not having
[e- before b, d, g, j, l, m, n, r, v]: egregious, elated, emissary, elongate
[ec- before c, s]: eccentric, ecstasy
[ef- before f]: effect, effeminate, effluence
[es- in words of French origin]: estrange
[otherwise ex-]: expectorate, expect, execute, expose, extract, export
367. *ex- former: ex-president, ex-wife, ex-premier
368. exo- outer: exocardia, exosphere, exogamy
369. *extra- [positive]; extern- [comparative]; extreme- [superlative] out: extraordinary, extralegal, extracurricular, external, extremist
370. *–ey see –y
371. –fabul- speak: fabulous, fable, confabulate, fabulous, effable, confabulation
372. –fac- face: surface, deface, facial
373. *-facil- easy: facility facile, facilitate, difficult
374. *–fact-, -fect-, -fic-, -feat-, -feas-, -fit do, make: factory, benefactor, beneficiary, benefit, feasible, affect, suffice, indefeasible, proficiency, manufacture, malefactor, facsimile, factual
375. *-faction n. of some v. ending in –fy: satisfaction, liquefaction, rarefaction, stupefaction （重音faction）/fAkF[n/
376. *–fall-, -fals- deceive: fallacy, infallible, fallacious, falsify
377. –fam- 1) fame: famous, infamous, infamy 2) hunger: famished, famine
378. *–fashion in the stated manner: Indian-fashion
379. –fatig- tire out: indefatigable, fatigue
380. -febri- fever: febrifuge, febricula
381. *–feder- alliance: federation, federal, confederacy, antifederal, federalize
382. –felic- happy: felicity, felicitation
383. *–femin- woman: feminine, effeminate
384. *–fend-, -fens- strike: offensive, defend, defense
385. *–fer-, -lat- bring, carry: refer, confer, relate, translate, transfer, difference, conference, offer, prefer, preferable, aquiferous, superlative, sublate, collate, collation, ablate, prolate
386. –feroc- fierce: ferocious, ferocity
387. *–ferous that produces: auriferous, carpoferous
388. ferro- iron: ferroheme, ferroalloy, ferromagnetic
389. –ferv- boil, glow: fervid, fervor, perfervid, effervesce, effervescent, fervent
390. –fest- celebration: festival, festivity, festal
391. fibr- fiber: fibrination, fibrosis, fibrous
392. *–fic adj. specific, beatific, pacific, terrific, horrific （重音’- fic）/fik/
393. *–fication n. of v. ending in –ify: signification, intensification, classification, simplification （重音-fi’cation）/fikeiF[n/
394. *–fid- faith: confidence, fidelity, confide, confidant, affidavit, perfidy, perfidious, diffidence, fideism, infidel
395. *–fier agent of an act [of v. ending in -fy]: signifier, amplifier, pacifier（不影响重音）
396. –fil- thread, line: file, defile, filar, filament, profile
397. *–fix- fasten: transfix, fixture, prefix, suffix, affix
398. *–fig-, -fict- shape, make: figure, configuration, disfigure, figurative, fiction, fictive, nonfiction, disfiguration, transfiguration
399. –fili- son: filial, affiliate
400. *–fin- end: final, confine, confinement, definitive, definite, finalist, finis, finale, finish, definite, infinite, infinitive, finitude, infinity, undefined, confinement
401. –firm- firm: confirmation, reaffirm
402. –flamm- flame: inflammable
403. –flat- blow [v]: inflate, inflationary, deflate, inflationary, conflation, reflate, flatus
404. flav- yellow: flavonone, flavescent
405. *–flect-, -flex- bend: reflect, deflect, reflex, reflection, inflection, flex, flexible, flexuous
406. *–flict- strike: inflict, conflict, affliction, inflictive
407. *–flor-, -flour- flower: flora, florist, florid, flourish, efflorescence, floret, deflower, defloration
408. *–flu- flow: affluent, influence, confluence, fluency, influenza, fluid, refluence, defluent, superfluous
409. fluoro- [fluor- before a vowel] 氟，荧光: fluoroscope, fluorite
410. *–fold of the stated number or times: manifold, twofold，fourfold （不影响重音）
411. –foli- leaf: defoliate, foliage
412. *for- 1) apart: forsake, forgive, forgo 2) restrain: forbid
413. *fore- before, in front of: forewarn, forecast, forehead, forearm, foretell, forefather, forerun
414. –form- form: deform, reform
415. *-form of the stated form: gasiform, dentiform, cubiform （不影响重音）
416. foster- adopt: foster-child
417. *–fort- strong: fortify, fortress
418. *-frag-, –fract- break: fraction, refractory, fragile, fragment, fragmentary, fracture, refractor
419. *Franco- French: Francophone
420. *–frater- brother: fraternity, fraternal
421. *–free without: carefree, addictive-free
422. *–friendly convenient for: user-friendly, printer-friendly
423. –frig-, -friger- cold: frigid, refrigerator, fridge, frigidity
424. –fruct- fruit: fructify
425. –frustr- in vain: frustrate
426. *–fug- flee: fugitive, refugee, fugacious, centrifugal, fugacity, insectifuge, febrifuge, lucifugous, subterfuge
427. *–ful 1) adj. full of : beautiful, bashful, shameful, peaceful 2) amount measured by ~: mouthful, spoonful, dishful （不影响重音）
428. –fulmin- thunder, explosion: fulminate
429. *–fus- pour: infuse, transfuse, confusion, refusal, diffuse, interfuse, perfuse, profusion
430. *–funct- perform: function, perfunctory
431. *–fund-, -found- bottom: profound, profundity, found, foundation, fundamental, fundament
432. –furi- rage: furious, infuriate
433. -furt- theft: furtive
434. *–fy cause to become: pacify, beautify, intensify, glorify（不影响重音）
435. galacto- milk: Galaxy, galactic
436. galvano- electricity: galvanize, galvanism
437. *–gamist n. bigamist, polygamist, bigamist, misogamist （重音’- gamist）/g[mist/
438. *–gamous of the stated kind of marriage: polygamous, bigamous, monogamous （重音’ - gamous）/g[m[s/
439. *–gamy: marriage: polygamy, bigamy, monogamy （重音 ‘- gamy）/g[mi/
440. gastr- stomach: gastronomy, gastritis
441. *–gen-, -gener-, -genet- 1) birth: gene, genesis, genetic 2) kind [n]: generic, general, generous
442. *–genarian n. and adj. octogenarian, sexagenarian （重音’arian）
443. –genic producing: ketogenic
444. genito- of the genitals: genitalia, genitourinary
445. *-geo- earth: geology, geography, geometry, geometrician, geopolitics, geothermal
446. *–ger-, -gest- carry: belligerent, congestion, gesture, digestion
447. gero- old people: gerocomia, gerontology
448. *giga- gigant- huge: gigantocyte
449. –glaci- ice: glacial, glaciology, glacier, glaciation, subglacial, preglacial
450. -glob- globe: globular, globalism
451. –glor- glory: glorify, vainglorious
452. –glossia tongue: macroglossia
453. gluc-, glyc- sweet: glucose
454. –glyph- carve out: hieroglyph, anaglyph
455. *–gon- angle: pentagon, diagonal, trigonometry, hexagon, octagon, polygon
456. *–gony birth: cosmogony
457. *-grad- step, go: gradual, graduate, retrograde, degrade, upgradable, downgrade, gradine
458. *–gram, -gramme picture: ideogram, telegram, program, diagram, cryptogram, phonogram, hologram, seismogram （重音’- - gram）/gr[m/
459. *–graph- record, draw: telegraph, photograph, graphics, autograph, biography, monograph, polygraph, micrograph, macrograph, seismograph, barograph, stereograph, cyclograph, holography （重音’- -graph /gr[f/ ）gra’phic /grAfik/ ’ - graphy /gr[fi/）
460. –gran- grain: granary, granivorous, granule, granular
461. *–grat- gratitude: gracious, gratis, ingratiate
462. *–grav- heavy: gravity, aggravate, gravitate, agravic, grave, gravid, gravidity
463. *Graeco- Greco- Greek: Greco-Roman
464. *–greg- flock [v]: segregate, congregate, aggregate, gregarious, egregious, congregation
465. *–gress- go: aggression, aggressive, Congress, transgress, progress, progressive, retrogress, congressional, digress, egress, ingress, regress
466. –gubern- govern: gubernatorial
467. –gust- taste: gusto, disgust
468. *–gyn-, gynae-, gyne-, gynaec-, gynec- woman: gynecology, misogyny, androgynous, monogyny, polygyny, philogynists
469. gyro- circle: gyrate, gyroscope
470. *–habit- live, dwell: inhabit, cohabit, inhabitant, habitat, habitation, conhabitant
471. haem-, hem-, hemat- blood: hemochrome
472. hagio- saint: hagiography
473. –hal- breathe: inhale, inhalant, exhale, inhalator, halitosis, exhalation
474. hamart- wrong: hamrtoplasia
475. –hap- chance, luck: perhaps, happen, happy, mishap, hapless, haply
476. haplo- simple: haplosis, haploid
477. –haust- draw water: exhaust, exhaustive
478. *he- male: he-wolf, he-man
479. –head head, origin: beachhead, springhead
480. *hecto- 100: hectogram, hectometer, hectowatt
481. helio- sun: heliolatry, heliocentric, perihelion, aphelion, heliosis, heliotherapy, heliotropism
482. *Hellen- ancient Greece: Hellenic, Hellenize
483. *hemi- half: hemisphere, hemicycle
484. hepat- liver: hepatitis
485. *hepta- [hept- before a vowel] seven: heptagon, heptode
486. *–her-, -hes- stick, cling: adhere, cohesive, coherence, hesitant, inhere, inherent, cohere
487. *–hered-, -heret- heir: inheritance, heritage, hereditary, heredo-immunity
488. *hetero- different: heterogeneous, heterosexual, heterodox, heteromorphic
489. *hexa- [hex- before a vowel]six: hexagon, hexameter
490. –hibern- winter: hibernate
491. *–hibit- hold: inhibit, prohibit, exhibitionism, exhibit
492. hiero- holy: hieroarchy, hieroglyphic, hieroglyph
493. *–high of the stated height: knee-high
494. –hilar- cheerful: hilarity, exhilarate
495. hippo- horse: hippopotamus
496. *holo- [hol- before a vowel] all: holocaust, holistic, holograph, holophone
497. *homeo-, homo- the same: homophone, homosexual, homophone, homonym
498. *-hood period, condition,state, quality: childhood, likelihood, neighborhood, falsehood（不影响重音）
499. –horr- horror: horrify, abhorrence, abhor, horrific, horrendous
500. –hort- urge [v]: exhort, exhortation
501. –hospit-, -host- guest: hospitable, hospital, hotel, hostage, inhospitable, hospitality, hostile
502. –hum- ground: inhume, exhume, inhumation, humble, humility, humiliate, posthumous
503. *hydro- water, hydrogen: hydropower, hydraulic, hydroplane, hydrosphere, hydrology, hydropathy, hydrophobia, dehydrate, hydrate, hydrolysis, hydrant
504. *hypo-, hyp- below, decrease: hypothermy, hypothesis, hypotension, hypothermia
505. *hyper- extreme: hypersensitive, hypermilitant, hyperslow
506. hypno- sleep: hypnotic, hypnosis, hypnotize, dehypnotize, hypnotist, hypnotherapy
507. hypso- high: hipsotherapy
508. *–i n. or adj. Israeli, Iraqi, Pakistani（重音’- i）/i/
509. *–ia 1) name of countries: India, Liberia 2) name of diseases: pneumonia 3) certain Greek and Latin words: militia, intelligentsia, utopia 4) generic names: reptitia（重音’- ia）/i[/
510. *-ial [variant of -al]: presidential, spatial, managerial, adverbial, palatial, differential （重音’ – ial, -tial /F[l/, -erial /i[ril/, -orial /o:ril/ ）
511. *–ian [variant of -an] n. or adj. Canadian, Romanian, grammarian, theologian （重音’ - ian）/i[n/
512. –iasis disease: urolithiasis （重音’iasis）/ieisis/
513. –iatr- medical: iatrotechnique, psychiatrist
514. *–ibility: n. of adj. ending in –ible: combustibility, irresistibility （重音i’bility）/ibiliti/
515. *–ible [variant of -able]: combustible, irresistible, extensible, sensible
516. *–ic 1) adj. of, having to do with: volcanic, organic, metallic 2) like, having the nature of: angelic, basic, specific, idyllic 3) produced by, caused by: anaerobic 4) producing, causing: analgesic 5) consiting of, containing: dactylic 6) showing, affected by: lethargic, allergic 7) adhering to: Gnostic 8) science: rhetoric, arithmetic, logic 9) n. person: critic, sceptic, heretic, mechanic（重音’ – ic /ik/，但是’Catholic, ‘lunatic, a’rithmetic, ‘heretic）
517. *–ical adj. =-ic: logical, economical （重音’ - ical）/ik[l/
518. *–ice 1) quality, act or condition. avarice, caprice, service, malice, edifice 2) person: novice, apprentice （通常重音’- - ice /is/，但ap’prentice）
519. ichthyo- fish: ichthyology, ichthyoid, ichthyphagous
520. *–ician n. person: logician, musician, physician, magician （重音’ician）/iF[n/
521. *–icious adj. of n. ending in –ice: avaricious, capricious, malicious （重音’icious）/iF[s/
522. *–icity n. of adj. ending in –ic: specificity, lucidity, specificity（重音’icity）/isiti/
523. *–ics study, discipline: economics, physics, mathematics （重音’- ics）/iks/
524. *–id adj. of Latin origin: languid, placid, livid, fervid, frigid （通常重音’- id）
525. *–ide 化合物: oxide（不影响重音）
526. *–idity n. of adj. ending in –id: frigidity （重音’idity）/iditi/
527. *ideo- thought, idea: ideology, ideogram, ideal, ideality, idealistic, ideate
528. idio- of oneself: idioglossia, idiom, idiosyncrasy, idiosyncratic, idiomatic, idiopathy, idiograph
529. *–ie, -y name of endearment: doggie, birdie, lassie（不影响重音）
530. –ier n. person or thing: cashier, brazier, dossier, glazier, frontier （通常’ – ier /i[/，但ca’shier）
531. *ig- see in-
532. –igni- [-ign- before a vowel] fire: ignite, ignition, igneous, ignitable, preignition
533. *il- see in-
534. *–ile 1) adj. agile, hostile, fragile, juvenile, senile 2) n. missile, projectile （通常重音’- - ile 英音/ail/， 美音/[l/）
535. *–ility n. of adj. ending in –ile: agility, fragility, servility, mobility（重音’ility）/iliti/
536. *im- see in-
537. *in- 1) [into, onto, towards, intensive] v. 2) [not] adj. of Latin origin
[ig- before n] ignoble
[il- before l] illustrate, illegal, illogical, illiterate
[im- before b, m, p] imperil, imbibe, impossible, immoral, impassive, impotent
[ir- before r] irrigate, irritate, irresistible, irregular, irruption
[otherwise in-] indict, invade, inhuman, incorrect, incapable, inject, inhuman
538. *–in, -ine some special substance: insulin, vitamin, penicillin, morphine（通常重音’ - - in/ine）/in/
539. *Indo- Indian: Indo-European
540. *–ine 1) see –in 2) adj. alkaline, clandestine, canine 3) abstract nouns: doctrine, medicine, famine, discipline 4) person, usually denoting female: heroine, libertine, concubine (通常重音’ - - ine) /ain/ or /in/
541. *infra- [positive] below; inferior- [comparative] ; infern- [superlative]: infrastructure, infrared, infrasound, inferiority, infernal
542. *–ing 1) present participle: stopping 2) material: bedding, wrapping, flooring, clothing 3) occupation: banking, accounting, printing 4) thing: holding, footing, carving, building 5) adj. surprising, exciting （不影响重音）
543. *–insul- island: insular, insulin, insulate, peninsula, insularism
544. *–integr- whole: integrity, integrate, disintegration, integral, integer
545. *inter- [positive] between, mutual; interior- [comparative]; intim- [superlative]: international, intercontinental, interject, interpersonal, interchange, interact, intermix, interior, intimacy
546. *intra- within: intradepartmental
547. *intro- inward: introduction, introspection, introvert
548. *–ion 1) n. of certain v.: communion, opinion, union, election 2) thing: medallion, accordion, cushion（重音’- ion）/i[n/
549. *–ious [variant of -ous]: spacious, laborious, contagious, curious （重音’- ious）/Fi[s/
550. –ir- anger: ire, irate
551. *–isation, ization n. of v. ending in –ise or –ize: modernization （重音i’sation）/aizeiFn/
552. *–ise, -ize cause to become: modernize, institutionalize （不影响重音）/aiz/
553. *-ish 1) of or belonging to a nation or people: Spanish, Irish 2) like or characteristic of [usually derog.]: devilish, boyish, womanish, knavish 3) somewhat: blusih, grayish 4) about [colloq.]: eightish 5) v.: vanish, punish, establish （不影响重音）/iF/
554. *–ism doctrine, state, practice: alcoholism, naturalism, Maxism （不影响重音）/iz[m/
555. *iso- the same in every part: isotherm, isobar, isomagnetic, isotope, isogon
556. *–ist 1) person (corresponding to words ending in -ism): pessimist, modernist; 2) adj. characteristic of: impressionist （不影响重音）/ist/
557. *–istic adj. of n. ending in –ism: optimistic, simplistic （重音’istic）/istic/
558. *–it- go: committee, exit, obit, obituary, visit, initial, ambition, initiate, initiative, transit, transitory, circuit
559. *Italo- Italian: Italo-French
560. *–ite 1) n. stalagmite, appetite 2) adj. 3） v. ignite
561. –iter- repeat: reiterate
562. –itiner- journey: itinerary, itinerant
563. *–ition n. of v. ending in –ite or –ete: competition, ignition, recognition （重音’ition）/iFn/
564. *–itive adj. or n. of n. ending in –ition: cognitive, addictive （重音同原动词）/itiv/
565. *–itis: infection: bronchitis, hepatitis, nephritis （重音’itis）/aitis/
566. *–itor doer [of v. ending in –ite or –ete]: competitor （重音同原动词）/it[/
567. *–itude, -tude n. of Latin origin: magnitude, latitude, attitude （重音’ - itude）/tju:d/
568. *–itudinal, -tudinal adj. of n. ending in –itude or –tude: attitudinal, latitudinal （重音’tudinal）/tju:dinl/
569. *–ity, -ty quality: reality, verity, longevity, sincerity （重音’- ity）/iti/
570. *–ive adj. or n. of n. ending in –ion: permissive, active （重音同原动词）/iv/
571. *–ivity n. of adj. ending in –ive: activity，productivity, relativity （重音’ivity）/iviti/
572. *–ization see -isation
573. *–ize see –ise
574. *–jac- lie at a certain place: adjacent
575. *–ject- throw: abject, deject, reject, eject, projection, projector, projectile, inject, injection, interject, subject, object
576. –joc- jest: jocose, joke
577. –jubil- wild shout: jubilee, jubilation
578. *–judic- judge: adjudicate, judiciary
579. –jug- yoke: conjugal
580. *–junct- connect: adjunct, conjunction, injunction, disjunction, disjunctive
581. *–jur-, -juris- right, law: jurisdiction, juror, abjure
582. *–just- just, fair: justice, adjust, injustice
583. *–juven- [postive] young; minor-, minus [comparative]; minim- [superlative]: juvenile, rejuvenate, minority, minimize
584. juxta- near: juxtaposition
585. karyo- core: karyokinesis
586. *kata- =cata-: katabolism
587. kera-, kerat- 角: keratitis
588. keto- 酮: ketogenic
589. *kilo- 1,000: kilogram, kilowatt, kilocalorie, kilometer
590. *–kin n. diminutive: lambkin，manikin, napkin （不影响重音）
591. *–labor- labor: laborious, collaborate
592. –lacrym- tear: lachrymal, lachrymose
593. –lact-, -galact- milk: ablactation, lactic, lactary, lactate, lactifuge, galaxy, galactic, agalactia
594. –langu- weak: languid, languor
595. –lapid- stone: dilapidate, lapidary
596. *–laps- fall: lapse, collapsible, relapse
597. laryng- throat: laryngology
598. *–lat- 1) wide: latitude 2) see –fer-
599. –later- side: bilateral, lateral, multilateral
600. –latrous of worship: idolatrous
601. –latry: worship: idolatry
602. –laud-, -laus- praise: laudable, laudatory
603. –lavat-, -lot- wash: lavatory, lotion
604. –lax- loose: relax, laxity
605. *-le 1) v. denoting repeated action, esp. of a small or trivial kind: winkle, twinkle, wriggle 2) n. usually diminutive: shuttle, handle, girdle 3) adj. from verb stems: brittle 4) onomatopoeia: sizzle, gurgle （不影响重音）
606. *–led taking ~ as the leading force: export-led （不影响重音）
607. *–leg- 1) [also –legis-] law: legal, legitimate, legislature, legislation, legislate, extralegal, legality, legalist, illegakize 2) appoint: delegate, relegate 3) choose, read, gather [also –lig-, -lect-]: legible, intelligence, select, eligible, elect, elitism, intellect, intellectual, collect, collection, elegant, neglect, neglectful, negligence, lecture, dialect, idiolect, legendary
608. *–lence n. of adj. ending in –lent: turbulence, fraudulence （重音’ - - lence）/l[ns/
609. –leni- mild: lenity, lenient
610. *–lent full of: virulent, fraudulent, turbulent （重音’ - - lent）/l[nt/
611. lepto- small, thin: leptosome, leptocephalic
612. *–less without: selfless, homeless (不影响重音) /l[s/
613. *–let diminutive: riverlet, bracelet (不影响重音) /lit/
614. leuc-, leuk- white: leukemia
615. *–lev-, -lieve, -lief lift: elevate, alleviate, relieve, lever, elevator, levitate
616. levo- left: levorotation
617. *–liber- free: liberal, liberate, libertine
618. –libr- book: library, librarian
619. –lid-, -lis- bump: collide, collision
620. –lig- bind: oblige, obligation
621. lign- wood: ligneous
622. *–like like, suitable for: gentlemanlike, womanlike (不影响重音)
623. –limin- threshold: eliminate, preliminary
624. *–ling diminutive: duckling, underling, yearling，weakling (不影响重音)
625. *–lingu- language: bilingual, linguist, linguistic, multilingual
626. –liqu- liquid: liquor, liquidate
627. *–liter- letter: literary, literal, literate, literacy, illiteracy, anti-illiteracy, transliterate, obliterate
628. –lith-, -lite stone: monolith, lithography, aerolith, aerolithology, Paleolithic, Neolithic, megalith, lithic, lithiasis, zoolite
629. *–loc- place: collocate, allocate, local, location, localize, locomotive, relocate, dislocate
630. *–log-, -logue word, logic, discipline: logical, monologue, sociology, dialogue, eulogy, eulogize, apology, prologue, epilogue, neologism, philology （重音’- - logue /l[g/, ‘- logy /l[dVi/）
631. *–loger n. of certain n. ending in –logy: astrologer （重音’ - loger）/l[dV[/
632. *–logian n. of certain n. ending in –logy: theologian （重音’logian）/lCdVi[n/
633. *–logic, –logical adj. of n. ending in –logy: geologic, geological, anthropologic （重音’logic, ‘logical）/lCdVik/, /l[dVikl/
634. *–logist: n. of most n. ending in –logy: Sinologist, biologist （重音’- logist）
635. *–long- long: longevity, longitude
636. *–loqu-, -locut- speak: loquacious, eloquent, grandiloquent, eloquence, soliloquy, obloquy, loquacity
637. *–luc- light [n]: lucid, elucidate, translucent, lucent, elucidate, noctilucent
638. *–lud-, -lus- play: delude, allude, illusory, elusive, collude
639. *–lumin- light, lamp: luminous, illuminate, illuminance, luminary, luminosity, relumine
640. *–lun- moon: lunar, sublunary, lunatic, lunacy, sublunary
641. –lup- wolf: lupine
642. –lustr- light up: illustrate, illustrious
643. *–ly 1）n → adj. friendly, brotherly 2) adj. → adv. slowly, helpfully（不影响重音）/li/
644. –lysis dissolution, relaxation: analysis, catalysis, paralysis
645. –lyst analyst, catalyst
646. –lytic, -lytical adj. of n. ending in –lysis: analytic, analytical （重音’lytic, ‘lytical）
647. –machin-, -mechan- machine: machinery, mechanism
648. *macro- big: macrocosmic, macroeconomics, macroworld, macroscale
649. –macul- stain: immaculate
650. *–magn- [positive] big; major- [comparative]; maxim- [superlative]: magnify, magnifier, magnitude, magnanimous, magnificent, magnate, majority, maximum
651. *mal-, male- [positive] bad or badly; pejor- [comparative]; pessim- [superlative]: maltreat, malcontent, malpractice, malnutrition, malfunction, malediction, pejorative, pessimist, pessimism
652. –malacia 软化: cerebromalacia （重音’lacia）
653. *–man-, -mans- stay, dwell: remain, mansion, immanent, manor, permanence, remanent
654. –mancip- slave: emancipate
655. *–mand-, -mandat- command: demand, mandate, mandatory, countermand
656. *mani-, manu- hand: manicure, manuscript, manufacture, manacle, maintain
657. *–mania craziness: monomania, megalomania （重音’mania）
658. *–maniac person suffering from mania: monomaniac （重音’maniac）
659. *–maniacal of mania or a maniac: megalomaniacal （重音ma’niacal）
660. *–manship qualities associated with a profession: sportsmanship, craftsmanship
661. *–mar-, -mer- sea: marine, submarine, mermaid, mariner, antisubmarine, maritime
662. –marit- husband: marital
663. *–mascul- man: masculine
664. *–mater-, -matr- mother: maternity, matricide, matron, matriarchal, maternal
665. –materi- mater: material, materialize
666. –matur- ripe: maturity, immature
667. *–medi- middle: mediate, medium, intermediate, immediate, mediator, medieval, Mediterranean, median
668. *-medic- physician: medical, medicine, medication, medicinal, medicable, medico, medico-legal, Medicaid
669. *mega- million, large: megabyte, megacity, megaphone, megatanker, megahertz, megaton
670. megalo- huge: megalomania
671. mela-, melan- black: melancholy
672. –memor- mindful: memorize, immemorial, memorial, commemorate, commemorative
673. –mens- 1) month: menses, menstruate 2) measure: immense, immensity, mensuration, commensurate, mensural
674. *–ment- mind: mental, mentality, mention, mentionable, comment, commentary, commentator, amentia, demented
675. *–ment: v. → n.: government, instrument, development （不影响重音）
676. –merc- trade: commercial, mercantile
677. *–merg-, -mers- dip, sink: emerge, submerge, immerse, emergence, immerge, immersion, submergible
678. meso- middle: mesoderm
679. *meta- [met- before a vowel]1) change in position or form, alteration, transposition =trans-: metathesis, metasomatism 2) after [in medical terms =post-]: metaphysical 3) behind, at the back of [in anatomical terms, =dorso- ] metanephros 4) going beyond or higher, transcending: metalinguistics, metahistory, metacriticism 5) between: metope 6) in chemical terms: metaprotein
680. *–meter, -metr- measuring, or instrument or science for measuring: geometrical, symmetry, barometer, speedometer, trigonometry, thermometer, metrology, seismometer, photometer, optometer, audiometer, diameter, perimeter, gasometer, spirometer
681. *meteoro- meteor or climate: meteoroid, meteorology, meteorite
682. metho- 甲基: methane
683. *–metry: measurement: geometry
684. *micro- 1) small: microphone, microscope, microprint, microsystem 2) 1/1,000,000 micrometer
685. *mid- middle: midsummer, midlife, midnight
686. *–migr- move: migration, immigrant, emigrant, transmigration, migrant, intermigration
687. *–milit- army: militant, military, militia, militarism, militarize
688. *mill- 1,000: millennium
689. *milli- 1/1,000 millimeter, milliliter, milligram
690. *–min- hang: imminent, prominent, eminent, preeminent
691. *mini- small: minibus, miniskirt, minister, minify, minim, minimum, miniature, diminish
692. -ministr- servant: miniter, administer
693. *–minut- small: minute, diminutive, minutiae
694. *–mir- wonderful, strange: mirror, miracle, admire, mirage, miraculous
695. *mis- bad, wrong: mistake, misunderstanding, misconception, misuse, misprint, misspelling, misfortune, misrule, misremember
696. *–misc-, -mixt- mix: miscellaneous, promiscuous, mixture, miscible, immiscible, promiscuity
697. –miser- unfortunate: miserable, commiserate
698. miso- [mis- before a vowel] hate: misogyny, misanthropy
699. *–mit-, -mitt-, -miss- send: remit, remittance, admission, missile, dismiss, dismissal, dismissive, transmit, transmission, promise, missionary, intermit, intermittent, intermission, emit, emission, emissary
700. *–mob-, -mot-, -mov- move: mobile, motion, remote, remove, movement, demobilize, demote, promote, motive, motivation, motor, mob, immobile, mobilize
701. *mock- imitation: mock-trial
702. –mod-, -moder- measure, way: modal, mode, modulate, moderate
703. –molli- tender: mollify
704. *–mon-, -monit- warn: admonish, premonition, monument, monitor, admonition
705. *mono- [mon- before a vowel] single: monologue, monarch, monotone, monoplane
706. –monstr- show: demonstrate, demonstrative
707. *–mony event or state: hegemony, matrimony, patrimony, ceremony
708. –morb- sick: morbid, morbidity
709. –morph- shape: amorphous, morphology, geomorphic, anthropomorphous, homomorphic
710. –mors- bite: remorse
711. *–mort- die: immortal, mortuary, postmortem, mortician, mortal, mortality
712. *–most most: northernmost, utmost （不影响重音）
713. *multi- many: multitude, multinational, multidirectional, multiracial, multiparty
714. –mur- wall: mural, muralist, extramural, intramural, intermural, immure, immurement
715. *–mut- change: mutable, mutability, mutual, mutant, mutation, permutation, commutation, commute, commuter, transmute
716. myco- fungus: mycology
717. myria- 10,000, many: myriad, myriapod
718. myrmeco- any: myrmecology
719. myxo- 粘液: myxoderma
720. mytho- myth: mythology, mythopoeic
721. narco-, narcot- numb: narcolepsy, narcotic, narcosis
722. –narr- tell: narrative, narrate
723. *–nasc-, -naiss-, -nat- birth: natural, nation, prenatal, renascent, renaissance, native, nativity, neonate, natal, prenatal, postnatal, connate, cognate
724. -naut- sailor: astronaut, nautical, aeronautics
725. *–nav- ship: navy, naval, navigate, circumnavigate
726. –navig- steer: navigation, circumnavigate
727. –nebul- fog: nebulous, nebula
728. *necro- death: necromancer, necrophobia
729. –necrosis death: angionecrosis （重音ne’crosis）/nikr[usis/
730. –necrotic adj. of n. ending in –necrosis
731. –neg-, -negat- say no: negate, abnegation
732. –negoti- business: negotiate
733. -negr-, -nigr- black: Negro, denigrate, Negroid, negrophile, nigrify, nigritude
734. *neo- new: neoclassic, neonatal, neogamist, neocolonialism, neorealism
735. nephr- kidney: nephritis
736. –nerv- sinew: nervous, unnerve
737. *–ness adj. → n.: selfishness, coldness，bitterness （不影响重音）
738. *neuro- [neur- before a vowel] nerves: neurology, neurosis, neural, neuritis, neurasthenia, neuroma, neuropathy
739. –neutr- neither: neuter, neutral
740. *–nex-, -nect- link: annex, connect, disconnect, annexation
741. –nik person keen on something: beatnik, peacenik （不影响重音）
742. *–nihil- nothing: nihilist, annihilate, nil, nihility
743. *–noc- injure: innocent, innocuous, noxious, nocent
744. nocti- [noct- before a vowel] night: noctambulism, noctiphobia, noctiflorous
745. **-nomic adj. of n. ending in –nomy: astronomic, economic
746. *–nomin- name: nominate, nominal, nomination, nominee, ignominy, ignominious
747. –nomy a field of study: astronomy, economy, autonomy, agronomy
748. *non- 1) not: nonsense, nonexistence, nonsmoker, nonconductor, nonstop 2) nine: nonet
749. –norm-, -nom- normal: abnormal, paranormal, anomaly, enormous, normalize, subnormal, supernormal
750. *–not- mark: notice, notable, annotate
751. *–nov- new: novelty, innovate, renovation, novice
752. nucleo- nuclear: nucleogenesis, nucleonic
753. –nupt- wedding: nuptial
754. –nud- naked: nudity, denude
755. –null- not any: nullify
756. *–numer- number: numeral, enumerate, numeric, numerable, innumerable
757. –nunc-, -nounc- announce: pronunciation, denounce, renunciation
758. –nutri- nourish: nutrition, nutrient, nutritional, innutrition, nutriology, nutriment, nutrimental
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