Meaning

noun a piece of furniture that stands at the side of a dining room; has shelves and drawers

noun a meal set out on a buffet at which guests help themselves

noun usually inexpensive bar

originInherited from Middle English buffet (“stool”), from Middle French buffet (“side table”), from Old French buffet, of unknown origin. The modern pronunciation is remodelled after modern French buffet.

Etymology from Wiktionary, CC BY-SA 3.0