英语常见词根—400个The form of a word that remains after removal of all affixes;a morpheme(词素) with lexical meaning that is not further subdivisible(可以再分的) into other morphemes with lexical (词汇的)meaning;the essential, fundamental, or primary part of a word.英语词根：词的核心部分，词的意义主要是由它体现出来的。

它可以单独构成词，也可以彼此组合成词。

（词根和词缀叫构词语素）下面举出一些主要词根例词:ag=do,act做，动agent 代理人agri,agro=agriculture田地，农田agriculture农业，农艺ann,enn=year年annual 每年的，年度的astro,aster=star星astronomy天文学audi,audit=hear听audible听得见的bell=war战争rebellion反叛，反抗bio,bi=life生命，生物biology生物学brev=short短abbreviate缩短，节略ced,ceed=go行走precedent先行的，在前cept=take拿，取exception例外，除外circ=ring环，圆circle 圆，圈，环状...acid, acr = sour, sharp act = to actagogue = leader al, ol, ul = to nourishalt = high alter, ali = otheram = to love ang = to strangleangl, angul = angle anim = breath, mindann = year anthrop = manapt = fit aqua = waterarm = weapons art = skill, artaud = to hear aug = to increase, to make,to growavi = bird astro = star, star-shapedband, bond = to bind bar = barbat = to beat bat , bas = to gobell = war bio= lifebrev = short cad, cid, cas = to fallcalc = lime camp = fieldcand = white , bright cant, chant, cent = to singcap = head cap = to takecar = car , to run carn = fleshcast = throw cav = hollowcede, ceed , cess = to go, to yield ceive, cept, cip, cipate = to takeceler = swift cent = hundredcentr = center cern, cret = to separatecert = surechron = timecide , cise = to cut circ , cyc = ringcite = to call , to urge claim , clam = to cryclin = to bend clud = to shutcoct = to cook cognis, gnos = to knowcommun = common cord = heartcorp = body cosm , cosmo = universecount = to count cover = to covercre, cresc = to make, to grow cred = to believecrim = accusation, crime crit = to judgecruc = crossculp = blame, guiltcult = to till cumb = to lie downcur, course = to run cure = to take carecuss = to strike , to shake deb, du = to owedei = god dem = peopledent = tooth derm, derma, dermat = skindic = to proclaim dict, dit = to saydign = worthy divid, divis = to dividedoc = to teach dom = housedom = to tame, to rule don, dot, dow = to givedorm = to sleepdox, dogma = opiniondraw = to draw, to pull drom = to run , course(process)duce, duct = to lead dur = to lastdyn, dynam = powereco = house ego = I , selfelectr = electricem, empt = to take, to buy equ = equalerr = to wander, to err ess, est = to befa, fabl, fabul = to speak fac, front = face, foreheadfac, fect = to make , to do fall, fals = to deceivefam = to speak fare = to gofend , fest = to strike fer = to carry, to bear, to tolerateferv = to boil fess = to speakfest = festival fict, fig = to feignfid = to trust figure = to shape , figure(n.), form(n.)fil = thread , to spin fin = to endfirm = firm fix = to fastenflam, flagr = flame, to burn flat = to blowflect, flex = to bend flict = to strikeflor = flower flu = to flowfoli = leaf form = to form, form ,shapefort = strong found , fund = basefract, frag = to break fug = to fleefuse, found = to pour gam = marriagegener, gen, gent = to produce, race(n.) ger, gest = to carrygrad, gress = to walk gram , graph = to writegrand = grand grat = to pleasegrav = heavy gregat = to collecthab, hibit = to have hap= luckhelio = sun her = heirherb = grass here, hes = to stickhorr = to tremble hum , hom = manhum = ground hydr = waterhypno = sleep idio = personal, distinctinsul = island it = to goject , jac = to throw join, junct = to joinjourn = day jud = to judgejur = to swear just, juris = law, right , justicelabor = to work laps = to slip, to glidelate = to bring , to bear later = sidelav , lau = to washlax , lyse = to loosenlect, leg = to choose , to gather, to read leg = to appoint , to sendleg = law lev = to raise, light (adj.)liber = free libr, lib = booklic = to be permitted lig = to bindlingu = tongue, language liqu = fluidliter = letter loc = placelog , loqu, locut = to speak long = longlud = to play lumin = lightlust, luc = brightmagn, maj , max = greatmanu, man = handmand, mend = to order , to entrust mari = seamark = to mark , boundary matr= mothermechan = machine med = to healmedi = middle melan = blackmemor = to remember ment = to think , mind(n.)mere = to trade , reward(n.) merge, mers = to sink, to dipmeter = to measure migr = to remove , to wandermilit = soldier, to fight min = to jut , to projectmin = small mir = to wonder, to beholdmiss, mit = to send, to throw mix = to mixmod = manner mon = to advise , to remindmonstr = to show mor = custommorph = form mort = deathmount = mountain, to ascend mov, mob, mot = to movemuni = service mur = wallmut = to change myst = mysterynat = born nau, nav = shipnecro = death, dead nect , nex = to bindneg = to denyneur , neuro , nerv = nerveneutr = neither nihil = nothingnoc , nox = to harm noct , nox = nightnomin, nom = name norm = rule, normnot = to mark nounce, nunci = to reportnov = new nul, null = nothingnumber, numer = number, to count nutri = to nourishocul = eye onym = nameoper = to work , work opt = to wishopt, opto = eye, sight ora = to speak ,to prayorder, ordin = orderori = to rise , to beginorn = to decorate, to furnish ortho = straight , rightoss, osteo = bone pact = to agree, to fastenpan = bread par = to preparepar = equal par = to appearpar = to bear , to give birth to part = a part , to partpass = to pass passi , pati, path = to suffer, feelingspart = father ped = footped = child pel , puls = to drivepen ,pun = to punish pend, pens = to hang , to weighperi = to go throughpet = to fly , to seekpetr, petro = stone, rock phan ,fan = appearancephon = sound ; phe = to speak photo = light (n.)pict = to paint , picture plac , pleas = to pleaseplain , plaint = to beat the breast plant = to plant , plant (n.)plaud, plode = to strike, to clap plen, plete, ple , pli, ply = to fill, full ( adj. )plore = to flow out ply, pli, ple = to foldpolis = city polit, poli = state, countrypon , pound = to put popul, publ = peopleport = to carry port = gatepos = to place , to put potent = powerfulprec = to pray preci = pricepreda = prey(n.), to plunder press = to pressprim, prin, prem = first pris, prehend = to seizepriv = private (adj.) to deprive proach , proxim = nearprob, prov = to test , to try, to examine proper , propri = proper, one’s own psych, psycho = soul pugn = to fightpunct = to prick pur = purepurg = to purify pute = to thinkquer = to complain qui, quiet = calm , rest(n.)quire, quisit , quest = to seek quit = to free , to releaserad, ras = to scrape radi = rootradi = ray rap, rav = to snatchrat , ratio = to reckon , reason (n.) rect = right , straightreg = to rule , king (n.) rept = to creeprid , ris = to laugh rod, ros = to gnawrog = to ask rot = wheel (n.) , to turnrud = raw rupt = to breakrur, rus = country sacr , sanct , secr = sacredsal = saltsal, sult = to leapsal , san = whole sangui = bloodsat = full scan , scend , scal = to climbsci = to know scribe , script = to writesect = to cut sed, sess, sid = to sitsemin = seed sen = oldsens ,sent = to feel sequ, secut, su = to followsert = to join, to put serv = to serve, to keepsign = to mark simil, sembl = like(prep.), samesinu = curve ,sinus sist , stitut, sta, st = to standsoci = companion, to associatesol = alonesol = sun solv, solute = to loosensomn = sleep son =soundsoph = wise ,wisdom sort = kindspec, spect = to see, to look sper = hopespers = to scatter spher = ballspir = to breathe splend = to shinespond , spons = to promise stell = starstill = drop stinct, sting = to prickstring , strict , strain, stress = to draw tight stru, struct = to buildsuade = to advisesume,sumpt = to takesumm = sum, highest sur = sure , securesurge , surrect = to rise tac, tic = silenttail = to cut tang , tact = to touchtain , ten, tin = to hold , to keep techn(o) = art , skilltect = to cover temper = to moderatetempor = time tempt , tent = to trytend , tens , tent = to stretch tenu = thinterm = boundary terr = earthterr = to frighten test = witnesstext = to weavethe(o) = godthes, thet = to place , to put tim = to fearton = tone tort = to twisttour, torn = to turn tox = poisontract , treat = to draw tribut = to pay , to bestowtrop = to turn trud , trus = to thrust , to pushtum = to swell turb = to disturbultim = last umbr = shadowurb = city us , uti = to usevac, van , void = emptyvade = to govaga = to wander val , vail = strong , worthvar(i) = diverse , to change velop = to wrapven , vent = to come ven = veinvenge = to avenge vent = windver = true verb = wordverg = to incline vers, vert = to turnvest = to clothe , garmentvi , voy = way vict , vinc = to conquervid , vis = to see vig , veg = livelyviv = to live voc , voke = to call , voicevol = will volve, volut = to rollvor = to eat vulse = to pluck , pull out ,pull off词根例词ag=do,act做，动agent代理人agri,agro=agriculture田地，农田agriculture农业，农艺ann,enn=year年annual每年的，年度的astro,aster=star星astronomy天文学audi,audit=hear听audible听得见的bell=war战争rebellion反叛，反抗bio,bi=life生命，生物biology生物学brev=short短abbreviate缩短，节略ced,ceed=go行走precedent先行的，在前cept=take拿，取exception例外，除外circ=ring环，,圆circle圆，圈，环状物cid,cis=cut,kill切，杀suicide自杀claim,clam=cry,shout喊叫exclaim呼喊，惊叫clar=clear清楚的，明白的clarify澄清；使清楚clud,clus=close,shut关闭exclude排斥，拒绝，接纳cogn=know知道cognition认知cord=heart心cordial衷心的，诚心的corpor,cor=body体corporation团体，社团cred=believe,trust相信，信任credibility可信，可靠，cruc=cross十字crucify把……钉在十字桇上；折磨cur=care关心，挂念，注意security安全cru,curs,cour,cours=run跑cruise巡航舰di=day日diary日记dit=give给edit编辑dict,dic=say言，说dictator独裁者，口授者duc,duct=lead引导conduct引导，指导，经营ed=eat吃edible可以吃的，食用的ev=age年龄，时代longevity长寿，长命fact,fac=do,make做，作factory工厂fer=bring,carry带，拿different不同的，相异的flor,olour=flower花florid如花的，华丽的flu=flow流fluency流利，流畅fus=pour灌，流，倾泻refuse拒绝，拒受geo=earth地geography地理学gon=angle角trigon三角形grad=step,go,grade步，走，级gradual逐步的gram=write写telegram电报graph=write,writing写，画photograph照相，拍照gress=go,walk行走progress进步hap=chance,luck,accident机会，偶发happen发生，巧遇hibit=hold拿，持exhibit展出，展览hospit,hosp=guest客人hospitable好客的idio=particular,own,private,proper特殊的，个人的，专有的idiom惯用语，方言insul=island岛insular岛的，偏狭的it=go行走exit出口，退出ject=throw投掷projection投掷，发射lect,leg,lig=choose,gather选，收elect 选举lev=raise举、升elevate抬起，使升高liber=liberty自由liberation解放lingu=language语言linguist语言专家liter=letter文字，字母literate识字的，有文化的loc=place地方local当地的log=speak言，说dialogue对话loqu=speak言说eloquent有口才的，雄辩的lun=moon月亮lunar月亮的，似月的nanu,man=hand手manuscript手稿mar=sea海marine海上的，航海的medi=middle中间mediate居中调解，调停memor=memory,mindful记忆，记住的memory 记忆，记忆力milit=soldier兵military军事的，军队的mini=small,less小minimum最小数mir=wonder惊奇，惊异admire赞赏，钦佩mort=death死mortal终有一死的mot=move移动motion运动，动nomin=name名nominal名义上的，有名无实的nov=new新novel新的，新奇的numer=number数numeral数字，[语]数词oper=work工作operation手术，工作，操作ori=rise升起orient东方，东方的paci=peace和平pacify使和平，抚慰past=feed喂，食pasture放牧、牧场，吃草pel=push,drive推，逐，驱propel推动pend,pens=hang悬挂pendent悬空的，悬而未决的pet=seek追求compete竞争，比赛phon=sound声音phone电话plen=full满，全plenty大量，丰富pone=put放置postpone推后，推迟popul=people人民population人口，全体居民port=carry拿，带，运import输入，进口pos=put放置expose揭露，揭发preci=price价值precious宝贵的，珍贵的pur=pure清，纯purify使纯净rect=right,straight正，直correct改正，纠正rupt=break破rupture破裂，使裂开sal=salt盐salary薪水sci=know知science科学sec,sequ=follow跟随sequence继续，连续sect=cut切割section切开，一部分sent,sens=feel感觉sentiment感情，思想感情son=sound声音sonic声音的，音速的spect=look看spectate出席，观看spir=breathe呼吸inspire鼓舞，吸入tail=cut切，割tailor裁缝，成衣商tain,ten=hold握，持，守contain容纳，包含，内装tect=cover掩盖detect侦查，发觉tempor=time时temporary暂时的，临时的tend,tens=draw拉tension拉紧，引力tent,tract=draw拉，抽，引tractor拖拉机urb=city城市suburb郊区，近郊ut=use用utility效用,有用vac,vacu=empty空vacancy空白，空虚vad,vas=walk,go行走invasion入侵，侵略vari=change变化variable可变的，反复的ven=come来convene召集（会议），集会vert,vers=turn转subvert推翻，颠覆vi,via=way路via取道，经由vis,vid=see看visible可见的，看得见的vit=life生命vital充满活力的viv=live活vivid活泼的，有生气的前缀开放分类：英语、语法、学习、词汇中文中：[prefix]以结合形式出现,与一词、词根或短语开头的一个音或连续几个音相接,或书写中一个字母或连续几个字母用以产生出派生词或变化形式。