α?-θάνατος (the ᾶ is a necessity of the dactylic rhythm):
deathless, immortal; also as subst., opp. βροτοί, θνητοί, ἄνδρες; said of
‘imperishable’ possessions of the gods, Od. 4.79, Il.
2.447
; α?θάνατον κακόν (Charybdis), Od. 12.118.