faith, trust fid, fide, feder Root Meaning Examples confidante, fidelity, confident, infidelity, infidel, federal, confederacy, semper fi

factory, fiction confection fact, amplification Fac, fact, fic, fect Root Meaning Examples Do, make factory, fiction confection fact, amplification

erg work energy, erg, allergy, ergometer, ergograph, ergophobia Root Meaning Examples erg work energy, erg, allergy, ergometer, ergograph, ergophobia

fallacy, falsify, fallacious Root Meaning Examples fall, fals deceive fallacy, falsify, fallacious

ferry, coniferous, fertile, defer, infer, refer, transfer Root Meaning Examples fer bear carry ferry, coniferous, fertile, defer, infer, refer, transfer

filet, filament, filter, filibuster fila, fili Root Meaning Examples thread filet, filament, filter, filibuster

fix, fixation, fixture, affix, prefix, suffix Root Meaning Examples fix fix fix, fixation, fixture, affix, prefix, suffix

flect, flex Root Meaning Examples bend flex, reflex, flexible, flexor, inflexibility, reflect, deflect

influence, fluid, flue, flush, fluently, fluctuate flu, fluc Root Meaning Examples flowing influence, fluid, flue, flush, fluently, fluctuate

final, finite, finish, confine, fine, refine, define, finale Root Meaning Examples end final, finite, finish, confine, fine, refine, define, finale