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).