εἴησθα

From LSJ

τίς δ' οἶδεν εἰ τὸ ζῆν μέν ἐστι κατθανεῖν, τὸ κατθανεῖν δὲ ζῆν κάτω νομίζεται → who knows if life is death, and if in the underworld death is considered life

Source

French (Bailly abrégé)

poét. c. εἴης.

Spanish (DGE)

v. εἰμί.