Ἑκάεργος
From LSJ
Μέμνησο νέος ὤν, ὡς γέρων ἔσῃ ποτέ → Iuvenis memento te fore aliquando senem → Bedenke jung schon, dass dereinst ein Greis du bist
English (LSJ)
ὁ, expld. by Gramm. (EM319.51, 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. II 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.)