ἐθελουργός
From LSJ
Ὅσον ζῇς, φαίνου, μηδὲν ὅλως σὺ λυποῦ· πρὸς ὀλίγον ἐστὶ τὸ ζῆν, τὸ τέλος ὁ χρόνος ἀπαιτεῖ. → While you live, shine; have no grief at all; life exists only for a short while, and time demands its toll.
English (LSJ)
όν,
A willing to work, indefatigable, X.Eq.10.17, Ael.NA4.43; τὸ ἐ. Ph. 2.448. Adv. -γῶς Poll.3.121.