1795, member of the moderate republican party of France, 1791-93, from Gironde, name of a department in southwestern France; the faction so called because its leaders were deputies elected from there.[Girondist etymology, Girondist origin, 英语词源]
"A form of aircraft with freely rotating horizontal blades and a propeller. It differs from a helicopter in that the blades are not powered but rotate in the slipstream, propulsion being by a conventional mounted engine", 1920s: from Spanish, from auto- 'self' + giro 'gyration'.