immortaliter
From LSJ
ἑτέρως ἠδύνατο βέλτιον ἢ ὡς νῦν ἔχει κατεσκευάσθαι → otherwise they could have been constructed better than they are now (Galen, On the use of parts of the body 4.143.1 Kühn)
Latin > English (Lewis & Short)
immortālĭter: (inm-), adv., v. immortalis.
Latin > French (Gaffiot 2016)
immortālĭtĕr,¹⁶ éternellement : Aug. Conf. 4, 2