saeviter
From LSJ
ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
Latin > English (Lewis & Short)
saevĭter: adv., v. saevus.
Latin > French (Gaffiot 2016)
sævĭtĕr (sævus), avec rigueur : Pl. Ps. 1290 ; Enn. Scen. 180 ; 307.