fat

From Middle English fat, from Old English fǣtt (“fatted, fat”), from Proto-West Germanic *faitid (“fatted”), originally the past participle of the verb *faitijan (“to make fat”), from *fait (“fat”).

From Middle English fat, fatt, fatte, from the adjective above, and possibly from Old English fǣt (“fat”, recorded once), from Proto-West Germanic *fait, from Proto-Germanic *faitą, *faitaz (“fat”).

From Middle English fat, from Old English fæt (“vat, vessel, jar, cup, casket, division”), from Proto-Germanic *fatą (“vessel”), from Proto-Indo-European *pod- (“vessel”). Cognate with Dutch vat (“barrel, vessel”), German Fass (“barrel, drum”), Swedish fat (“barrel, dish, cask”). See vat

From French fat (“conceited person”).