τεθνηκέναι

From LSJ

ὥσπερ σελήνη γ' ἡλίῳ· τὴν μὲν χρόαν ἰδεῖν ὁμοιόν ἔστι θάλπει δ' οὐδαμῶς → like the moon to the sun: its color is similar to the eye, but it does not give off any heat

Source

Greek > English (Woodhouse Verbs Reversed)

(see also θνήσκω): be dead