55).lyclearly, easily, quickly
56).ward, -wards inward, outward, upward, downward, homeward, northwards
57). -wise clockwise, otherwise
3. Stems
1). aero (air) aerial *, aeroplane, aeronautics ^
2). agri (land)agriculture, agronomy ^
3). ann (year) anniversary, annual, semiannual, centennial
4). astro, aster (star) astrology ^, astronomy *, astronaut ^, disaster, asteroid
5). audi (to hear)audience, auditorium ^, audit ^, auditor ^, auditory ^ audio-visual
6). bell (war)rebel, rebellion, rebellious, belligerent
7) .ced (to go) precede, precedent, unprecedented, exceed, proceed, succeed
8). cid, cis (to cut, to kill)decide, decision, decisive *, concise, suicide, homicide, pesticide
9). claim (to cry, to shout) exclaim, proclaim, acclaim, clamor
10). clar (clear) declare, clarify, clarity *
11). cord (heart)cordial, concord, discord ^, accord
12). cred (to believe, to trust) credible, incredible, credulous, credit, credential
13). dent (tooth) dental, dentist *
14). dict (to say)contradict, dictate, dictator, predict, indicate, indicative
15). fact (to do, to make) factory, manufacture, benefactor, malefactor
16). flu (to flow) fluent, influence, influenza (flue), fluid
17). geo (earth) geography, geometry, geology *, geopolitics ^
18). gram, graph (to draw, to write)diagram, telegram, program, photograph, geography, telegraph
19). insul (island)insulate, insulator ^, insular, peninsula
20). ject (to throw)project, inject, reject, subject, eject
21). liber (free) liberate, liberty (at liberty), liberal, liberalism ^
22). liter (letter) literate ^, literacy, illiterate, illiteracy, literature, literary, literal *, literally*
23). log (to speak)dialogue, apology, prologue, monologue, logic
24). manu (hand)manuscript *, manufacture, manufacturer, manual, manage, management, manager
25). medi (middle) immediate, medium, media, mediate, medieval, median
26). mort (death)mortal, immortal, mortality
27). nov (new)novel, novelty, novice, innovate
28). ori (to rise) orient, oriental, Oriental, orientation, origin, original, originate, disorient
29). pend (to hand, money)depend, dependent, dependency, dependable, independent, suspend, expend, spend, expenditure, expense, expensive, pension
30). port (to carry) portable, import, export, deport, porter, support
31). pur (pure)purify *, purity *, Puritan ^
32). rect (correct, straight)correct, rectify *, erect
33). rupt (to break) interrupt, disrupt, bankrupt, bankruptcy, corrupt
34). sal (salt)salary, salad
35). sist (to stand)resist, resistance, resistible, consist, assist, exist, insist, persist
36). spect (to look)spectacle, spectacular, prospect, retrospect, inspect, respect, suspect, circumspect ^, spectator *, conspicuous *, perspective
37). spir (breath)inspire, inspiration, spirit
38). tract (to draw) tractor, attract, protract, contract, abstract, extract, distract
39). urb (city)urban, suburb, suburban
40).vac (empty)vacant, vacation, vacuum
41). vit (life)vital, vitality, vitamin, vitalize
42). vis (to see) visible, vision, visual, visit, visitor, advice, supervise, television
43). viv (to live) survive, survival, survivor, revival, vivid, vivacity
(注:标* 的为六级词汇，标^的为高级词汇)
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