The masculine first name Gregory derives from the Latin name “Gregorius,” which came from the late Greek name “Γρηγόριος” (Grēgorios) meaning “watchful, alert” (derived from Greek “γρηγoρεῖν” “grēgorein” meaning “to watch”). Through folk etymology, the name also became associated with Latin grex (stem greg–) meaning “flock” or “herd”.