ομοπάτριος
From LSJ
Ἀναξαγόρας δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνον → Anaxagoras 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
-α, -ο (Α ὁμοπάτριος, -ία, -ιον, θηλ. και -ος)
αυτός ή αυτή που έχει τον ίδιο πατέρα με κάποιον άλλο, αδελφός ή αδελφή από τον ίδιο πατέρα.
[ΕΤΥΜΟΛ. < ομ(ο)- + πάτριος (< πατήρ, πατρός)].