professor; professional; prophet; fabulous* fudge*
“-fasc-”: bewitch; charm; an enchantment（着迷）→fascinate
“-fav-”: protect; show kindness to（庇护；善意）→favor; favorite; favorite
“-feb-”: weep; to be lamented（哀泣）→feeble
“-fend-/-fence-/-fens-”: protect; shield; strike（保护）→defend; fence ; offence; offend; offensive
“-fer-/-far-/-fert-/-ford-”: bring; take; carry; to bear (birth)（带，拿，载，承担）→afford; affordable*; confer; conference; cf; differ; different; difference; differentiate; ferry; fertile; indifferent; infer; inference; metaphor; offer; prefer; preferable; preference; refer; reference; suffer; transfer; translate; deferential*
“-feri-/-feru-”: low; below（漂移）→inferior
“-fid-/-fait-/-fed-/-fy-”: trust; confidence（信任，相信）→confide; confident; confidence; defy; defiance; faith; faithful; federal; federation; diffident*
“-fier-/-feru-”: wild; savage（野蛮）→fierce
“-fil-”: son, brother（儿子，兄弟）→affiliate
“-fin-”: end; limit（端点；限制）→confine; confinement; define; definite; definition; definitely; fine; final; finance; financial; fine; finish; finite; infinite
“-fir-/-foc-/-fue-/-fur-/ ” : fire; rage（火，热；愤怒）→fire; fiery; focus; fuel; furious; furnace; fury
“-firm-/-firm-/-farm-”: make firm; settle（稳健，稳固）→affirm; confirm; farm; firm
“-flat-/-flar-”: blow（吹，）→inflate; inflation; deflate*; deflation*
“-flex-/-flect-”: bend（弯曲，折）→flexible; reflect; reflection
“-flic-”: strike→（打击，撞击）conflict; afflict; inflict*
“-flu-/-flu-/-flo-”: flow; wave（流动；波动）→affluent; float; flow; flood; fluctuate; fluent; fluid; flush; fly; influence; influential; overflow; superfluous
“-fod-/-fos-”: dug up; dig（挖，掘）→fossil
“-fori-”: outside（外部；外围）→foreign; foreign; forest; forum
“-form-”: form; shape; fashion（形式，形状，方式）→conform; conformist; form; formal; format; formation; formula; formulate; inform; reform; transform; deform*
“-fort-/-fors-”: ①chance；②strong（天意；强大，力量）→fortune; fortunate; misfortune; // comfort; comfortable; uncomfortable; effort; enforce; force; reinforce; fortitude*; fortress*; fortify*
“-fostr-”: feed; food（食物；滋养）→foster
“-frac-/-frag-”: break（打破，破裂）→fraction; fracture; fragile; fragment
“-fray-”: frighten; disturb（惊异；打扰）→afraid
“-front-”: forehead（额头）→confront
“-func-/-fung-” : perform; discharge（功用）→function
“-fund-/-found-”: bottom; deep; melt; cast（底；深）→found; foundation; fund; fundamental; profound
“-fus-/-fut-/-fund-”: mingle; mix; pour; beat（混合；倾倒）→confuse; diffuse; fund; fuse; futile; refund; refuse; refusal; transfuse*
“-gage-”: pledge（保证，誓言，抵押）→engage; engagement
“-gard-/-guard-”: look; watch; see（关注，认知）→disregard; guard; regard; regarding; regardless
“-genus-/-gene-/-gine-”: origin; race; produce; breed; talent; contrive; kind（起源；产生；创造；种类）→degenerate; engine; engineer; engineering; gender; gene; general; generalize; generate; generation; generator; generous; genetic; genius; genuine; homogeneous; ingenious; congenital*; genre*
“-gest-”: carry; to bear; bring（载；拿）→digest; gesture; register; suggest; suggestion; gesticulate*
“-graph-/-gram-”: writing（写）→bibliography; biography; autobiography; diagram; program; calligraphy*
“-grat-/-gree-/-grac-”: rejoice; pleasure（快乐；高兴）→agree; agreement; agreeable; congratulate; disgrace; grace; grateful; gratitude; greet; greeting; ingratiate*; gratis*
“-grav-/-grave-/-grie-/-gret-”: make heavier（变得沉重）→aggravate; grave; gravity; grieve; grief; regret; grievance*
“-gress-/-grad-/-gree-/-greg-/-gru-”: step; go; flock（步伐；走；聚合）→aggressive; aggression; congress; degree; grade; gradual; graduate; progress; progressive; segregate; upgrade; transgress*; gregarious*
“-guise-”: manner（方式）→disguise
“-gust-/-gous-”: taste（品味；胃口）→disgust
“-hab-/-hib-”: hand; hold (forth); have; living condition; dress; character（拿；持；生存；穿戴）→able; disable; exhibit; habit; habitat; heave; heavy; inhibit; prohibit; *rehabilitate; inhibit*; cohabit*
“-hale-”: whole; pull; draw; breathe（吸；拉）→haul; heal; health; healthy; inhale
“-hanc-/-haut-”: high; raise（高度）→enhance
“-hand-/-haur-/-haus-”: seize; draw（手；取；拿；抓）→exhaust; hand; handbook; handicap; handkerchief; handle; handsome; handwriting; handy; hint
“-her-/-hes-”: to stick to（粘，贴）→adhere; cohere; coherent; cohesive; hesitate
“-host-/-hosp-”: guest; inn; enemy（旅店，客人；敌人）→hospital; hospitality; host; hostess; hostage; hotel
“-iden-”: same（完全相同）→identical; identify; identification; identity
“-imi-/-ima-”: copy; representation（复制；代表）→image; imaginary; imagination; imaginative; imagine; imitate
“-initi-/-ire-/-it-”: initiate; go（开始；行走）→commence; exit; initial; initiate; initiative; issue; perish; transient; transition
“-insul-/-isol-/-isle-”: made into an island（岛屿；孤立）→insulate; isolate; peninsula
“-jac-/-jec-/-ject-”: to lie; throw（位置；扔向）→adjacent; adjective; eject; inject; jet; object; objection; objective; project; projector; reject; subject; subjective; deject*; conjecture*
“-jun-/-jon-/-junc-”: add; join; unite（加入；增加；联合）→conjunction; junction; jungle; join; adjoin; adjunct
“-just-/-jur-/-judg-/-judi-”: just; right; law（公正；法律；权利）→just; adjust; injury; judge; judgment; judicious; jury; just; justice; justice; justify; prejudice
“-jut-/-juv-”: help（帮助；用途）→aid
“-lab-/-lap-”: fall; slip（滑倒；闪失）→collapse; elapse; lap; lapse
“-labor-”: toil; work（工作，辛苦）→elaborate; lab; laboratory; labor
“-lais-/-lax-/lac-”: to leave; slack; lax; loosen（松开；离开）→delay; elastic; lace; lack; lazy; lease; let; loose; loosen; relax; relay; release; relish; slack; unleash*
“-langu-/-lingu-”: tongue; language（舌头；语言）→language; linguistic
“-leg-/-leag-/-lec-/-lig-/-lite-”: choose; select（挑选；精选）→colleague; collect; collection; collective; diligent; elect; elegant; eligible; elite; intellectual; intelligence; intelligent; intelligible; league; neglect; negligible; recollect; select; selection; negligent
“-lex-/-leg-/-lig-/-alier-/-alo-”: law; binding; tie（法律；捆绑；限制）→ally; alliance; alloy; colleague; illegal; legal; league; legislation; legislative; legitimate; leisure; liability; liable; loyal;; loyalty; obligation; oblige; privilege; rally; reliant; reliable; rely; religion; religious; liaison*; litigant*
“-lev-/-lieve-”: light; lighten; raise（减轻；提高）→alleviate; relief; elevate; elevator; lever; levy; relevant; relief; relieve
“-libr-/-leve-”: to weigh; scales（衡量；天平）→deliberate; level
“-lic-/-lect-” : pleasure（愉快；愉悦）→delicate; delicious; delight; delectable*; relics*; relish*
“-lit-/-litte-/-lege-”: letters; reading and writing（字母；读写能力）→illiterate; lecture; legend; lesson; letter; literacy; literally; literary
“-loc-/-lic-/-liber-/-libr-”: place; to be allowed; freedom（地点；应允；自由）→allocate; allow; couch; leisure; license; local; locality; locate; location; locale*; // deliver; liberal; liberate; liberty
“-logos-/-log-/-logue-/-leg-/-lect-”: speech; cite; ratio（话语；引证；比例）→allege; allegation; analogue; apology; apologize; ;dialect; dialogue; eloquent; logic; eulogize*
“-loud-/-low-/-laud-”: extol; praise（抬高；称赞）→loud; aloud
“-lue-/-lut-/-lav-”: wash（洗）→dilute; laundry; lavatory; lavish*
“-lum-/-lus-” : light（光，辉）→illuminate; illustrate; illustration; luminous*; luster*
“-magni-/-mast-/-maj-/-man-/-mas-”: great; more; to a greater extent; man（男性；伟大；雄伟）→magistrate; magnificent; magnify; magnitude; majesty; major; majority; male; man; marital;