3. Stems

　　1) vis (to see)    visible, vision, visual, visit, visitor, advice, supervise, television

　　2) agri (land)    agriculture, agronomy

　　3) ann (year)    anniversary, annual, semiannual, centennial

　　4) astro, aster (star)    astrology, astronomy, astronaut, astrophysics, disaster, asteroid, astronomer

　　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 (flu)， 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 hang, 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) viv (to live)    survive, survival, survivor, revival, vivid, vivacity

　　4. Compounds

　　breakfast, brunch, businessman, dragonfly, headmaster, headquarters, history, mankind, masterpiece, person, sit-in, downsize, backbone, lifestyle, lockout, newsletter, scapegoat, signpost, smallpox, spymaster, stakeholder, standstill, stockpile, trustworthy

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