"rim of a spoked wheel," early 15c., variant of felie (c. 1200), from Old English felga, plural of felg "rim of a wheel," from Proto-Germanic *felz- (source also of Old Saxon felga, Middle Dutch velge, Dutch velg, Old High German felga, German Felge).
fellahin
fellate
fellatio
fellation
feller
felloe
fellow
fellow-feeling
fellowship
felo-de-se
felon