Meaning

noun cattle that are reared for their meat

noun meat from an adult domestic bovine

noun informal terms for objecting

originFrom Middle English beef, bef, beof, borrowed from Anglo-Norman beof, Old French buef, boef (“ox”) (modern French bœuf); from Latin bovem (“ox”), from Proto-Italic *gʷōs, ultimately from Proto-Indo-European *gʷṓws. Doublet of cow. Beef in the sense of “a grudge, argument” was originally an American slang expression: * attested as a verb “to complain” in 1888: “He'll beef an' kick like a steer an'…

Etymology from Wiktionary, CC BY-SA 3.0