Dedication: 3/15/05

falx (gen. falcis): hook

defalcation, defalcate, defalcator, defalk, falcate, falchion, falciform, falcon, falconer, falconet, falconine, falconry, falcula, falcular, falculate, falx, gerfalcon

fama (rumor): see for

fames: hunger

famine, famish, famished, famishment, Oxfam, Potato Famine

familia: family; famulus: household slave; familiaris: private

defamiliarization, defamiliarize, familial, familiar, familiarism, familiarity, familiarization, familiarize, familiarly, familiarness, familism, familist, familistic, family, family circle, family name, family tree, materfamilias, nonfamily, overfamiliar, paterfamilias, stem family, subfamily, unfamiliar, unfamilarly

fanum: shrine

fan (person), fanatic, fanatical, fanatically, fanaticism, fanaticize, fane, fanship, profanation, profanatory, profane, profanely, profaneness, profaner, profanity

LS lists as same root as for, fari; both OLD and OED do not.
far: spelt (grain)

confarreate, confarreation, farina, farinaceous, farinose, farraginous, farrago, farreate, farreation

farcio: fill, pack

farce, farcer, farcical, farcicality, farcically, farcify, farctate, farcy, farse, infarct, infarction

fascinum: evil eye

fascinate, fascinating, fascinatingly, fascination, fascinator

fascis: bundle; fascia: headband

antifascist, crypto-fascist, extrafascial, fasces, fascia, fasciate, fasciation, fascicle, fascicular, fasciculate, fasciculation, fascicule, fasciculus, fascine, fasciola, fasciole, fascism, fascist, fascistic, fascistization, fess (stripe), neofascist, pro-Fascist, subfascial

fastus: pride; fastigium: gable

fastidious, fastidiously, fastidiousness, fastigiate, unfastidious

fateor (profess), profiteor (profess): see for.
fatigatus: weary; fatisco: lie open

defatigable, defatigation, fatigability, fatigable, fatigue, faigueless, fatiguesome, fatiguingly, fatiscence, fatiscent, indefatigability, indefatigable, indefatigably

fatum (fate): see for.
fatuus: foolish, tasteless

fatuity, fatuous, fatuously, infatuate, infatuation, infatuator

OED derives fade, fading, unfaded, unfading from vapidus. ODEE blends with fatuus.
Faunus: woodland god

avifauna, epifaunal, faun, fauna, faunal, faunizone, faunule, Faunus, herpetofauna, infauna, meiofauna, microfauna, piscifauna

fauces: throat

faucal, faucalize, fauces, faucial, suffocate, sufocatingly, suffocation, suffocative

faveo: favor

co-favorite, disfavor, faience, fautor, fautorship, favete linguis, favor, favorable, favorableness, favorably, favored, favoredly, favoredness, favorer, favoringly, favorite, favoritism, ill-favored, ill-favoredly, unfavorable, unfavorably, unfavored, well-favored

Favonius: west wind

Favonian, fohn

favus: honeycomb

faveolate, faviform, favose, favus

fax (gen. facis): torch

facula, facular, faculous

febris: fever

antefebrile, disfever, febricolous, febricula, febrifacient, febriferous, febrifugal, febrifuge, febrile, febrility, fever, fevered, feverish, feverishly, feverishness, feverless, feverous, feverously, hay fever, jailfever, postfebrile, rabbit fever, rheumatic fever, subfebrile, trench fever, undulant fever, war fever, wound fever, yellow fever

februum: rite of purification; februo (1): purify

February

fecundus: fertile

fecund, fecundate, fecundation, fecundity, fecundly, infecund, infecundity, superfecundation

feles (felis): cat

felicide, felid, feliform, feline, felinity

felix: lucky

Felicia, felicific, felicitate, felicitation, felicitous, felicitously, felicity, Felix, infelicific, infelicitous, infelicitously, infelicity

fello (1): suck

fellate, fellatio, fellator, fellatory, fellatrice, fellatrix

femina: woman

antifeminist, defeminization, defeminize, dux femina facti, effeminacy, effeminate, effeminately, effeminateness, effemination, female, femalely, femaleness, femicide, femina, feminacy, feminal, feminality, femineity, feminicity, feminie, feminility, feminine, femininely, feminineness, femininity, feminism, feminist, feminity, feminization, feminize, feminoid, femme fatale (Fr), postfeminism, postfeminist

femur (gen. femoris): thigh

coxofemoral, femoral, femur, interfemoral, patellofemoral, postfemoral

-fendo, fensus: ward off; -fensus: hostile; defendo: repel; offendo: attack; manifestus: clear

biodefense, co-defendant, counteroffensive, defence, defend, defendant, defender, defense, defenseless, defensibility, defensible, defensibly, defension, defensist, defensive, defensively, defensiveness, defensor, disinfest, electric-fence, fence, fenceless, fencer, fencing, fend, fender, fenderless, forfend, indefensible, indefensibly, infest, infestate, infestation, inoffensive, inoffensively, inoffensiveness, manifest, manifestation, manifestative, manifestly, manifesto, offence, offenceless, offend, offendant, offender, offense, offenseless, offensive, offensively, offensiveness, outfence, self-defense, sex-offender, sex-offense, undefendable, undefended, undefensible, unfenced, unoffended, unoffending, unoffensive, unoffensively, well-defended, zone defense

fenestra: window

defenestrate, defenestration, fenestella, fenestral, fenestrated, fenestration, fenestrule

feriae: holidays

fair (n), fairground, feast, feastday, feastmaster, ferial, feriate, fest, festa, festal, festlogy, festival, festive, festively, festivity, festoon, festoonery, fete, fiesta, funfest, gabfest, henfest, pesta, slugfest, songfest, sportfest, talkfest, waferfest

ferio: strike

ferule, interfere, interference, interferingly, interferer, interferon, noninterference

fero, latum: carry; aufero: carry off; confero: bring together; defero: carry down; differo: put off; refero: report; suffero: endure (ferw)

ablate, ablation, ablative, ablator, acuminiferous, aeriferous, afferent, aliferous, aluminiferous, amygdaliferous, aquifer, argentiferous, auriferous, auto-correlated, autocorrelation, bacciferous, balsamiferous, biferous, calcariferous, canaliferous, capsuliferous, carboniferous, cauliferous, ceriferous, cf., cheliferous, chloriferous, chromiferous, chyliferous, chymiferous, ciliferous, circulate, circulation, circulator, circulatory, circumference, circumferential, circumferentor, cirriferous, cobaltiferous, collatable, collate, collatee, collation, collationer, collative, collator, colliferous, colubriferous, columbiferous, columniferous, comiferous, conchifer, conchifera, conchiferous, confer, conferee, conference, conferencier, conferential, conferment, conferrable, conferral, conferrer, conifer, coniferin, coniferization, coniferous, coraliferous, corniferous, corolliferous, corpusculiferous, correlatable, correlate, correlation, correlational, correlative, correlatively, correlativeness, correlativity, correlogram, corymbiferous, costiferous, counteroffer, criniferous, crossfertilize, crossreference, crucifer, cruciferous, crystalliferous, culmiferous, cupriferous, cupuliferous, cypriferous, cystiferous, deafferent, decollate, decollator, dedifferentiation, defer, deferal, deference, deferent, deferential, deferentiality, deferentially, deferment, deferral, delate, delation, delator, diamantiferous, diatomiferous, differ, difference, different, differentiability, differentiable, differential, differentialize, differentially, differentiant, differentiate, differentiation, differentiator, differently, differentness, dilatorily, dilatoriness, dilatory, disciferous, disrelate, disrelation, doloriferous, dorsiferous, efferent, efferential, elate, elated, elatedly, elatedness, elatement, elation, elative, elator, embryoferous, embryoniferous, eutectiferous, fatiferous, febriferous, feracious, ferriferous, fertigation, fertile, fertilely, fertility, fertilizable, fertilization, fertilize, fertilizer, fetiferous, fibrilleferous, filiferous, fimbrilliferous, flamminiferous, floriferous, fluctiferous, foliiferous, Fortran, fossiliferous, fructiferous, frondiferous, furciferine, furciferous, gelatiniferous, gemmiferous, glandiferous, glanduliferous, globiferous, graminiferous, graniferous, granitiferous, granuliferous, guttiferous, gypsoferous, hederiferous, herbiferous, HTTP, igniferous, illation, illative, imbriferous, implementiferous, indifference, indifferent, indifferentism, indifferently, indigoferous, infer, inferable, inference, inferential, inferrentially, infertile, infertility, insectiferous, insufferable, insufferably, interrelate, interrelatedness, interrelation, interrelationship, intransferable, intranslatable, iodiferous, irrelative, lactiferous, laniferous, laticiferous, lative, legislate, legislation, legislative, legislatively, legislator, legislatorial, legislature, lethiferous, ligniferous, lignitiferous, limbiferous, long-suffering, Lucifer, Luciferian, luciferin, luctiferous, luminiferous, maculiferous, maliferous, mamilliferous, mammaliferous, mammiferous, manganiferous, margaritiferous, medusiferous, melliferous, mentiferous, metalliferous, mistranslate, mistranslation, mortiferous, motiferous, muciferous, nectariferous, nodiferous, nonproliferation, nonreferential, nubiferous, nuciferous, nucleiferous, oblate, oblateness, oblation, oblational, oblationary, oblationer, oblatory, ocelliferous, oculiferous, odiferous, odoriferous, offer, offeree, offerer, offering, offertorium, offertory, omniferous, ossiferous, overdifferentiation, overfertility, oviferous, ovuliferous, oxyluciferin, ozoniferous, paciferin, palladiferous, palmiferous, palpifer, palpiferous, papilliferous, papuliferous, papyriferous, peace-offering, pediferous, pelviferous, penniferous, perlative, pestiferous, petaliferous, petroliferous, piliferous, pinniferous, pistilliferous, placentiferous, platiniferous, plumbiferous, polliniferous, pomiferous, poriferan, poriferous, potassiferous, prefer, preferability, preferable, preferably, preference, preferential, preferentially, preferment, prelacy, prelate, prelature, proboscidiferous, proffer, profferer, prolate, prolative, proliferate, proliferation, proliferative, proliferous, public relations, pulmoniferous, purpuriferous, quartziferous, recirculate, recirculation, ref, refer, referee, reference, referendum, referent, referential, referral, refertilize, relate, related, relation, relational, relationship, relative, relative frequency, relative humidity, relatively, relative pronoun, relativism, relativist, relativity, relativize, reptiliferous, resiniferous, retransfer, retranslate, roriferous, rotifer, rotifera, sacchariferous, saliferous, sanguiferous, scutiferous, scyphiferous, sebiferous, securiferous, seleniferous, self-reference, self-referral, seminiferous, sensiferous, sexiferous, siliciferous, siliquiferous, sin-offering, somniferous, soniferous, soporiferous, spermatiferous, spiciferous, spiculiferous, spiniferous, splendiferous, splendiferously, sporangiferous, spumiferous, squamiferous, staminiferous, stanniferous, stelliferous, stipuliferous, stomatiferous, strombuliferous, sublate, sublation, succiniferous, sudoriferous, suffer, sufferable, sufferably, sufferance, sufferer, suffering, superlative, superlatively, tanniferous, telecon, teleconference, teliferous, tentaculiferous, thalliferous, thank-offering, thought transfer, thurifer, thyrsiferous, time difference, time differential, titaniferous, toxifer, toxiferous, tralatitious, transfer, transferability, transferable, transferase, transfer case, transferee, transfer effect, transference, transferential, transferer, transferor, transfer factor, transfer function, transfer line, transfer table, translatable, translate, translatese, translation, translational, translationese, translative, translator, translatorese, translatory, trochiferous, tuberiferous, tubifer, tubiferous, tubuliferous, turriferous, umbellifer, umbelliferous, umbraculiferous, umbriferous, uncirculated, unfertilized, unguiferate, unoffered, unrelated, unsufferable, unsufferably, unsuffering, untranslatable, untranslated, uriniferous, vaccinifer, valvifer, vasculiferous, veliferous, ventilate, ventilation, ventilative, ventilator, ventilatory, vermiferous, vesiculiferous, videoconference, viniferous, viruliferous, vitelliferous, vitiferous, vociferance, vociferant, vociferate, vociferation, vociferous, vociferously, vociferousness, wage differential, zero-tolerance, zinciferous

N.B. Ferry is unrelated.

ferrum: iron

conferruminate, conferrumination, farrier, farriery, Fe, fer-de-lance, ferrate, ferreous, ferric, ferriferous, ferrite, ferritize, ferroalloy, ferrocalcite, ferrochromium, ferroelectric, ferromagnetic, ferromagnetism, ferrometer, ferrotherapy, ferrotype, ferrous, ferruginous, ferrugo, ferrule, nonferrous, orthoferrite, transferrin

ferus: wild, fierce; ferox: fierce

feral, ferine, ferity, ferocious, ferociously, ferocity, fierce, fiercely, fierceness

ferveo: boil

defervesce, defervescence, defervescent, effervesce, effervescence, effervescency, effervescent, effervescently, effervescible, effervescingly, effervescive, ferment, fermentable, fermental, fermentarian, fermentation, fermenter, fervency, fervent, fervently, fervescent, fervid, fervidly, fervor, fervorous, perfervid, perfervidly, unfermented

festino (1): hurry, hasten

festina lente, festinate, festination

festuca: stalk

festucine

festus: see -fendo
feteo: stink

asafetida, fetid, fetidness, fetor

fetus: having given birth

effete, effeteness, fawn (n), fetal, fetalization, fetally, fetation, feticide, feticulture, fetiferous, fetiparous, fetus, multifetation, superfetation

fibra: leaf, lobe

defibrillate, defibrillation, defibrillator, defibrinate, fiber, fiberglass, fiberless, fiberscope, fibrate, fibre, fibrid, fibriform, fibril, fibrillar, fibrillate, fibrillation, fibriliferous, fibrilliform, fibrillogenic, fibrillose, fibrin, fibrinogen, fibrinoid, fibrinolysin, fibrinoplastic, fibrinous, fibroblast, fibrocystic, fibroma, fibromuscular, fibroneuroma, fibroplastic, fibrose, fibrosis, fibrositis, fibrous, fibrovascular, fibry, glassfiber, microfiber, osseofibrous, osteofibrosis, perifibrous

fibula (brooch): see figo
ficus: fig

ficoid, ficus, fig, fig leaf

fides: faith; fido: trust; foedus: treaty, league; fidus: faithful; foedus: treaty; perfidia: treachery

affianced, affidavit, AFL, antifederalist, auto-de-fe (Pg), bona fide, confederacy, confederal, confederalist, confederate, confederately, confederateship, confederation, confederative, confidant, confide, confidee, confidence, confident, confidential, confidentiality, confidentially, confidently, confider, confiding, confidingly, confidingness, defiance, defiant, defiantly, defier, defy, defyingly, diffidation, diffidence, diffident, diffidently, faith, faith-based, faithful, faithfully, faithfulness, faithless, faithlessness, faithworthy, FBI, fealty, fed (cop), federal, federalism, federalist, federalistic, federalization, federalize, federally, federate, federation, federationist, federative, federatively, federator, fiance, fiancee, fideism, fideist, Fidel, fidelity, fidepromissor, Fido, fiducial, fiducially, fiduciarily, fiduciary, hi fi, high fidelity, infidel, infidelity, infidelize, mala fide, nullifidian, omnifidel, overconfidence, overconfident, perfidious, perfidiously, perfidiousness, perfidy, Punica fides, Santa Fe, self-confidence, self-confident, self-confidently, semper fidelis, solifidian, solifidianism, ultrafidian, unfaithful, unfaithfully, unfaithfulness, wi-fi

figo, fixum: fasten, attach; fibula: brooch, pin

affiche, affix, affixture, antefix, confix, confixative, confixture, crucifix, crucifixion, crucify, dorsifixed, fibula, fibular, fibulate, fiche, fichu, fix, fixable, fixate, fixation, fixative, fixator, fixed, fixedly, fixedness, fixer, fixit, fixity, fixture, idee fix (Fr), infibulation, infix, infixation, medifixed, microfiche, postfix, postfixation, prefix, prefixation, prefixion, price fixing, prix-fixe (Fr), rate-fixing, simulfix, soffit, suffix, superfix, tau crucifix, transfix, transfixation, transfixion, ultrafiche, unfix, unfixed

figura: see fingo
filius: son; filia: daughter

affiliate, affiliation, affiliative, disaffiliate, disaffiliation, filial, filiality, filiation, filicide, filiopietistic, fils (Fr), hidalgo, in nomine Patris et Filli et Spirtus Sancti, reaffiliate, reaffiliation, unaffiliated, unfilial

filix (gen. filicis): fern

filicifolia, filiciform, filicoid, filicology
filum: thread

bifilar, defilade, defile (n), enfilade, filament, filamentary, filar, file (papers, soldiers), filer, filet, filet mignon, filiferous, filigree, filipendulous, fillet, filoplume, filose, hilo, interfilamentar, interfilar, monofilament, multifilament, profile, profiler, profilist, profilograph, profilometer, pufle, quadrifilar, rank-and-file, trifilar, undefiled, unifilar

fimbriae: border, fringe

fimbriate, fimbriation, fimbrillate, fimbrilliferous, fringe

findo, fissum: split

bifid, contrafissure, counterfissure, decafid, decemfid, fissibility, fissile, fissicostal, fissidactyl, fissilingual, fissile, fissility, fission, fissionable, fissiparous, fissipede, fissirostral, fissive, fissure, infissile, multifid, multifidous, nuclear fission, palmatifid, pedatifid, pentafid, photofission, quadrifid, quasi fission, quinquifid, septemfid, sexfid, superfissure, transfission, triffid, trifid, vent (slit)

fingo, fictum: form, fashion

configuration, configurational, configurationism, configurative, configurature, configure, disfiguration, disfigure, disfigurement, disfigurer, disfiguringly, effigial, effigiate, effigies, effigurate, effigy, faineant, faint, fainthearted, faintly, faintness, feign, feignedly, feint, fictile, fictility, fiction, fictional, fictionalism, fictionalize, fictionize, fictitious, fictitiously, fictive, figment, figurability, figurable, figural, figurant, figurate, figuration, figurative, figuratively, figurativeness, figure, figurehead, figureless, figurement, figurer, figurine, fingent, nonfiction, nonfictional, nonfigurative, preconfigure, prefigure, reconfigure, science-fiction, scientifiction, string figure, transfiguration, transfigurative, transfiguratively, transfigure, unfeigned, unfigured

finis: border (pl. territory); finio: finish; finitus: closed (OLD perhaps related to figo)

ad finitum, ad infinitum, affinal, affination, affine, affinity, confinable, confine, confined, confineless, confinement, confiner, confines (n), confining, confinity, definability, definable, definably, define, definite, definitely, definiteness, definition, definitional, definitive, definitively, definitiveness, definitor, definitory, definitude, equifinal, final, finale, finalist, finalistic, finality, finalization, finalize, finally, finance, financee, financial, financially, financier, fin de siecle (Fr), fine, fine arts, finely, fineness, finery, finespun, finesse, finial, finicky, finifugal, finis, finish, finisher, finishing, finite, finitely, finiteness, finitism, finito, finitude, hydrofine, hyperfine, indefinability, indefinable, indefinably, indefinite, indefinitely, infinite, infinitely, infinitesimal, inifinitesimally, infinitism, infinitival, infinitive, infinitude, infinitum, infinity, no-fines, paraffin, photo-finish, postfinal, predefine, prefinished, quarterfinal, redefine, refinance, refine, refined, refinement, refiner, refinery, self-affinity, self-financed, semifinal, superfine, transfinite, trephine, unconfined, undefinable, undefined, unfinished, unrefined, user-defined, well-defined, wordfinal, zone refinery

Finicky accepted only by ODEE.

fio: be made (passive of facio)

fiat, fiat lux, fiat money, fiat voluntas tua

The car FIAT is unrelated.
firmus: hard; firmo (1): support, strengthen; confirmo: strengthen

affirm, affirmable, affirmance, affirmant, affirmation, affirmative, affirmatively, baby-farm, confirm, confirmability, confirmable, confirmand, confirmation, confirmatible, confirmative, confirmatory, confirmed, confirmee, confirmer, confirming, confirmor, dairy farm, disaffirm, disaffirmance, disafirmation, disaffirmative, disconfirm, disconfirmation, farm, farmer, farmerhood, farmery, farmhand, farmhouse, farming, farm-labor, farmland, farmlet, farmstead, farmwife, farmyard, fee-farm, fermata (It), firm, firmament, firmamaental, firmly, firmness, firmware, furl, infirm, infirmarian, infirmary, infirrmity, infirmly, megafirm, nonfarm, pennyfarm, reaffirm, reconfirm, seafarm, sheep farm, tank farm, tea farming, terra firma, unconfirmed, unfurl, waterfarm, waterfarming, wind-firm, wine-farm, woodfarm

fiscus: basket, treasury

confiscable, confiscatable, confiscate, confiscation, confiscator, confiscatory, fisc, fiscal, fiscalism, fiscality, fiscally, fiscal year

fistula: pipe

fester, fistula, fistular, fistulate, fistulatomy, fistuliform, fistulization, fistulous, multifistular

LS says same root as findo; others disagree.
flaccus: limp

flaccid, flaccidity, flaccidly

flagito: see flagro
flagro (1): blaze, be inflamed; flamma: flame

aflame, anti-inflammatory, conflagrant, conflagrate, conflagration, conflagrative, conflagrator, conflagratory, conflagitious, deflagrate, deflagration, deflagrator, disinflame, flagitious, flagitiously, flagrance, flagrant, flagrantly, flair, flambe, flambeau, flamboyance, flamboyant, flamboyantly, flame, flamer, flaming, flameless, flamelessly, flamethrower, flamingo, flammability, flammable, flammeous, flammiferous, flamy, in flagrante delicto, inflame, inflamer, inflammability, inflammable, inflammation, inflamatory, nonflammable, oriflamme, outflame, uninflamed

flagrum: whip

biflagellate, dinoflagellate, exflagellate, exflagillation, flagellant, flagellate, flagellation, flagellator, flagellatory, flagellum, flail, multiflagellate, pluriflagellate, triflagellate

See also fligo.
flamma: see flagro
flavus: yellow

flavella, flavescence, flavescens, flavescent, flavid, flavin, flavism, lactoflavin, ovoflavin, proflavin, riboflavin, subflavous

flecto, flexum: bend

anteflexion, chemoreflex, circumflect, circumflex, contraflexure, deflect, deflectable, deflection, deflective, deflectometer, deflector, deflexed, deflexibility, deflexible, deflexion, dorsiflex, dysreflexia, flection, flectional, flector, flex, flexed, flexibility, flexible, flexibly, flexile, flexion, flexor, flextime, flexuosity, flexural, flexure, genuflect, genuflection, genuflector, inflect, inflectable, inflected, inflection, inflectional, inflective, inflex, inflexibility, inflexible, inflexibly, interreflection, introflex, irreflection, irreflective, irreflexive, noninflected, nonreflecting, nonreflexive, plexiglass, reflect, reflectance, reflected, reflecting, reflection, reflective, refectively, reflectiveness, reflectivity, reflector, reflex, reflexive, reflexively, retroflex, self-reflection, self-reflexive, superflexion, uninflected, unreflected, unreflecting