Ἀλλ' Ἀχέροντι νυμφεύσω → I will become the bride of Acheron
immortal: P. and V. ἀθάνατος, Ar. and V. ἄφθιτος.
ageless: P. and V. ἀγήρως.
eternal: P. αἰώνιος, ἀΐδιος.
ever-remembered: P. and V. ἀείμνηστος.