male proper name, common in England and Scotland by 1143 (Gregory I sent the men who converted the English to Christianity), from L. Gregorius, from Gk. gregorios, a derivative of gregoros "to be watchful," from PIE base *ger- "to be awake" (cf. Skt. jagarti "he is awake," Avestan agarayeiti "wakes
up, rouses"). At times confused with L. gregarius (see gregarious).