fat: [OE] Fat is one of a large Indo-European family of words denoting the substance ‘fat’ or its consequences in terms of obesity – the probably related Greek pímelē and Latin pinguis, for instance, signified respectively ‘lard’ and ‘fat’. The Germanic members of the family, which include German fett, Dutch vet, and Swedish fet as well as English fat, go back to a prehistoric Germanic *faitaz. [fat etymology, fat origin, 英语词源]