ἄϊσθε

From LSJ

Ὅσον ζῇς, φαίνου, μηδὲν ὅλως σὺ λυποῦ· πρὸς ὀλίγον ἐστὶ τὸ ζῆν, τὸ τέλοςχρόνος ἀπαιτεῖ. → While you live, shine; have no grief at all; life exists only for a short while, and time demands its toll.

Source

French (Bailly abrégé)

3ᵉ sg. impf. poét. de ἀΐσθω.