A soft, fatty foodstuff made by churning the cream of milk (generally cow's milk).
Any of various foodstuffs made from other foods or oils, similar in consistency to, eaten like or intended as a substitute for butter (preceded by the name of the food used to make it).
From Middle English buter, butter, from Old English butere, from Proto-West Germanic *buterā, from Latin būtȳrum, from Ancient Greek βούτῡρον ("cow cheese"), compound of βοῦς and τῡρός.