Watcher (Aramaic עִיר iyr, plural עִירִין iyrin, IPA ʕiːr(iːn); Theodotian trans: ir; from the root of Heb. `er, “awake, watchful”;Greek: ἐγρήγοροι,transl.: egrḗgoroi; Slav transliteration, Grigori, “Watchers”, “those who are awake”; “guard”, “watcher”) is a term used in connection withbiblical angels. Watcher occurs in both plural and singular forms in the Book of Daniel (2nd century BC), where reference is made to their holiness. The apocryphal Books of Enoch (1st and 2nd centuries BC) refer to both good and bad Watchers, with a primary focus on the rebellious ones.