απεγνωσμένος

From LSJ

Ἀναξαγόρας δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνονAnaxagoras used to say that we have two teachers for death: the time before we were born and sleep | Anaxagoras said that there are two rehearsals for death: the time before being born and sleep

Source

Greek Monolingual

-η, -ο (AM ἀπεγνωσμένος, -η, -ον)
μτχ. παθ. πρκμ. του απογιγνώσκω.