The deep roots of gaiety
by Anatoly Liberman
The question about the origin of gay “homosexual” has been asked and answered many times (and always correctly), so that we needn’t expect sensational discoveries in this area. The adjective gay, first attested in Middle English, is of French descent; in the fourteenth century it meant both “joyous” and “bright; showy.” The OED gives no attestations of gay “immoral” before 1637.