Meaning

adjective having an (over)abundance of flesh

noun a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides)

verb make fat or plump

originFrom 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.

Etymology from Wiktionary, CC BY-SA 3.0