εὐτόνως
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
French (Bailly abrégé)
adv.
avec tension ; avec effort, avec vigueur.
Étymologie: εὔτονος.
English (Strong)
adverb from a compound of εὖ and a derivative of teino (to stretch); in a well-strung manner, i.e. (figuratively) intensely (in a good sense, cogently; in a bad one, fiercely): mightily, vehemently.