ἀεικελίως

From LSJ

οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass

Source

French (Bailly abrégé)

adv.
d'une façon lamentable.
Étymologie: ἀεικέλιος.

Spanish

inconveniente, terriblemente

Russian (Dvoretsky)

ἀεικελίως: позорно (δαμῆναι Hom.).