Greek αδελφός

← Ancient Greek ἀδελφός (inherited)

← Ancient Greek ἁ- (affix)

← Ancient Greek δελφύς (affix)

← Proto-Hellenic *hə- (derived)

← Proto-Indo-European *sem- (root)

← Proto-Indo-European *sm̥- (derived)

← Proto-Indo-European *gʷelbʰ- (mention)

→ Greek αδελφότητα (suffix)

→ Greek αδελφοκτονία (suffix)