List of Greek and Latin roots in English/F
# List of Greek and Latin roots in English/F

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## F

| Root | Meaning in English | Origin language | Etymology (root origin) | English examples |
| - | - | - | - | - |
| fa-, fa (FA) | say, speak | Latin | fārī, see also fatērī | affable, bifarious, confess, defamation, fable, fame, fascinate, fate, ineffability, infamy, infancy, infant, infantry, nefarious, preface, profess |
| fab- | bean | Latin | faba | faba bean |
| fac-, fact-, -fect-, -fic- (FAC) | do, make | Latin | facere, factus | affair, affect, affectation, amplify, artifact, artifice, benefactor, benefice, benefit, confection, counterfeit, defeat, defect, disaffect, edifice, effect, effectible, effection, effective, effectivity, effector, effectual, effectuality, effectuate, effectuation, efficacious, efficacity, efficacy, efficiency, efficient, enface, enfacement, facade/façade, face, facet, facette, facial, faciend, facient, facile, facilitate, facilitation, facilitative, facilitator, facilitatory, facility, facinorous, facsimile, fact, faction, factional, factionary, factious, factitious, factor, factorable, factorial, factory, factotum, factual, fake, fashion, feasible, feat, feature, feckless, fiat, forfeit, infect, inofficious, interoffice, laissez-faire, malefaction, manufacture, modify, nonofficial, office, official, officiant, officiary, officiate, officious, olfaction, omnificence, omnificent, parfait, perfect, perfecta, perfectibility, perfectible, perfection, perfective, perfector, pluperfect, prefect, prefectural, prefecture, prequalification, proficiency, proficient, profit, profitability, profitable, profiteer, profiterole, prolific, qualification, quasiperfect, rarefy, refactorable, refashion, refect, refection, refectory, reinfect, remanufacture, resurface, reunification, sacrifice, scientific, semelfactive, suboffice, subprefect, suffice, sufficiency, sufficient, superficial, superficiality, surface, surfeit, surficial, transfection, trifacial, trifecta, uniface, unifacial, unifactorial, unification |
| falc- | sickle | Latin | falx, falcis | defalcation, falcate, falciform, falchion, falcon |
| fall-, fallac-, fals- | false, deceive | Latin | fallere, falsus, fallāx, fallācis | default, fail, fallacious, fallacy, fallible, false, falsetto, falsify, falsity, fault |
| famili- | a close attendant | Latin | famulus | familiarity, family |
| fasc- | bundle | Latin | fascis | fajita, fasciculation, fascism |
| fatu- | foolish, useless | Latin | fatuus | fatuous, infatuation |
| feder- | treaty, agreement, contract, league, pact | Latin | foederāre, from foedus (genitive foederis); see also fides "faith" | confederacy, confederation, federal, federate, federation |
| fel- | cat | Latin | fēlēs, fēlis | Felinae, feline |
| felic- | happy, merry | Latin | fēlīx, fēlīcis | felicity |
| fell- | suck | Latin | fellāre | fellation |
| femin- | women, female | Latin | fēmina | femininity |
| femor- | thigh | Latin | femur (genitive femoris) | femoral, femur |
| fend-, fens- | strike | Latin | fendere, -fensus | defend, fend, offend, offense |
| fenestr- | window | Latin | fenestra | defenestration |
| fer- | to bear, carry | Latin | ferre | aquifer, circumference, confer, conifer, defer, differ, ferry, fertile, infer, Lucifer, offer, prefer, refer, suffer, transfer, vociferous |
| ferv- | boil, glow | Latin | fervēre | ferment, fervent, fervid, fervor, perfervid |
| feroc- | fierce | Latin | ferōx, ferōcis | ferocity |
| ferr- | iron | Latin | ferrum | ferrous |
| fet- | stink | Latin | fētēre | fetid, fetor |
| fic- | fig | Latin | fīcus | Ficus, fig |
| fid-, fis- | faith, trust | Latin | fidēs "faith, trust", from fidere "to trust" | confidante, confidence, confident, diffident, faith, fealty, fidelity, fiduciary, infidel, perfidious, perfidy |
| fig-, fing-, fict- (FIG) | to form, shape | Latin | fingere "to touch, handle; devise; fabricate, alter, change" | configure, disfigure, effigy, feign, fiction, fictitious, figment, figurine, nonfiction, transfigure |
| fil- | thread | Latin | fīlum | defile, filament, file, filigree, fillet, profile |
| fili- | son | Latin | filius | affiliation |
| fin- | end | Latin | fīnis | affinity, confine, define, final, finale, finance, fine, finish, finite, infinite, refine |
| find-, fiss- (FID) | cleave, split | Latin | findere, fissus | fission, fissure |
| firm- | firm, strong | Latin | firmus, firmāre | affirm, confirm, confirmation, firm, firmament, infirm |
| fistul- | hollow, tube | Latin | fistula | fistula |
| fix- | attach | Latin | fīxāre, frequentative of fīgere | affix, fix, fixation, fixture, prefix, suffix, transfix |
| fl-, fla- (FLA) | blow | Latin | flāre, flātus | afflatus, conflate, deflate, flatulence, flatus, flavor, flute, inflate, insufflation, soufflé, sufflate |
| flacc- | flabby | Latin | flaccus, flaccere | flaccid |
| flav- | yellow | Latin | flāvus | flavonoid |
| flect-, flex- | bend | Latin | flectere, flexus | circumflex, deflect, flex, flexible, flexile, flexion, flexor, genuflection, inflect, inflection, reflect, reflection, reflex |
| flig-, flict- | strike | Latin | flīgere, -flīctus | afflict, conflict, inflict, profligacy, profligate |
| flor- | flower | Latin | flōs, flōris | floral, florid |
| flu-, fluv-, flux- | flow | Latin | fluere, fluxus | affluent, confluence, effluent, fluctuate, fluctuation, fluency, fluent, fluid, fluidity, flush, fluvial, flux, influence, influx, superfluous |
| foc- | hearth | Latin | focus | bifocal, focal, focus |
| fod-, foss- | dig | Latin | fodere, fossus | fossil |
| foen- | hay | Latin | foenum | Foeniculum |
| foli- | leaf | Latin | folium | defoliant |
| font- | spring | Latin | fōns, fontis | font, fontal, fontanelle |
| for- | bore, drill | Latin | forāre, forātus | foralite, foramen, foraminifer, perforation |
| form- | shape | Latin | fōrma | conform, deform, form, formal, formation, formula, formulate, inform, perform, reform, uniform |
| formic- | ant | Latin | formīca | formaldehyde, formic acid |
| fornic- | vault | Latin | fornix, fornicis | fornication |
| fort- | strong | Latin | fortis | force, fort, forte, fortify, fortitude, fortress |
| fove- | shallow round depression | Latin | fovea | fovea |
| frag-, frang-, -fring-, fract- | break | Latin | frangere, frāctus | defray, diffract, fractal, fraction, fractious, fracture, fragile, fragment, frangible, fray, infraction, infringe, refract, refractory, refrain |
| frater-, fratr- | brother | Latin | frāter | fraternal, fraternity |
| fric-, frict- | rub | Latin | fricāre, frictus | dentifrice, friction |
| frig- | cold | Latin | frīgere | frigid, frigorific |
| front- | forehead | Latin | frōns, frontis | confront, frontage, frontal |
| fruct-, frug- | fruit | Latin | frūx, frūgis; frū̆ctus | fructose, frugivorous |
| fug-, fugit- | flee | Latin | fugere | centrifuge, fugacious, fugitive, refuge |
| fum- | smoke | Latin | fūmus | fume, fumigation |
| fund- | bottom | Latin | fundāre "to found", from fundus "bottom, foundation" | found, founder, foundation, fund, fundament, fundamental, fundamentalism, profound, profundity |
| fund-, fus- | pour | Latin | fundere, fūsus | confound, diffusion, effusion, effusive, found, fusion, infusion, perfusion, profuse, profusion, refund, suffusion, transfusion |
| fulmin-, fulgur- | flash | Latin | fulmen "lightning flash" | fulminant, fulminate, fulmination, fulgurite |
| fung-, funct- | do | Latin | fungī, fūnctus | function, fungibility |
| fur-, furt- | thief, steal | Latin | fūr (genitive fūris) "thief", fūrāre | ferret, furtive |
| furc- | fork | Latin | furca | bifurcation |
| fusc- | dark | Latin | fuscus | fuscous, infuscate, infuscation, obfuscate, obfuscation |
