A word particularly favoured by Aeschylus: Supplices 304 (Argus), Eumenides 1045 (Zeus), and in line 91 (sun) of the Prometheus Bound, which may or may not be Aeschylean. (For other instances in tragedy, comedy, and elsewhere see LSJ s.v.) Although the scholia to those three passages do not contain the present gloss, the scholia to muriwpo/n in (?)Aeschylus, Prometheus Bound 567, do mention Argus (above), refer to him as 'all-seeing', and gloss this as 'many-eyed'.
cf. generally pi 210.