ὁ, expld. by Gramm. (EM 319.51, etc.) as, = ὁ ἕκαθεν εἴργων or ἐργαζόμενος, Ep. epith. of Apollo, either Subst., Il. 1.147, etc., or Adj., 5.439, Od. 8.323, Call. Ap. 11, etc. ; fem., ὦ ἑκάεργε, of Artemis, Ar. Th. 972 (lyr.) ; — also Ἑκαέργη, a daughter of Boreas, Call. Del. 292. Pythag. name for nine, ἀπὸ τοῦ εἴργειν τὴν ἑκὰς πρόβασιν τοῦ ἀριθμοῦ Theol.Ar. 58. (This word and its cognates (e.g. ἑκατηβελέτης), although connected by Greek writers with ἑκάς, may have originally contained the stem ἑκṇτ- (cf. ἑκών) ΄at will΄; for the formation of Ϝεκα(τ)Ϝεργός, cf. γυναι(κ)μανής.)