credibiliter
From LSJ
Εἴκειν δ' οὐκ ἐπίσταται κακοῖς → You don't know how to yield to your misfortunes
Latin > English (Lewis & Short)
crēdĭbĭlĭter: adv., v. credibilis.
Latin > French (Gaffiot 2016)
crēdĭbĭlĭtĕr¹⁶ (credibilis), d’une manière croyable, vraisemblable : Cic. Dej. 17 ; Quint. 2, 15, 36