εὐξυνετώτερον

From LSJ

καλῶς δρῶν ἐξαμαρτεῖν μᾶλλοννικᾶν κακῶς → I would prefer to fail with honor than to win by evil | I prefer to fail by acting rightly rather than win by acting wrongly | Better fail by doing right, than win by doing wrong (Sophocles, Philoctetes 95)

Source

French (Bailly abrégé)

adv. att. seul. Cp.
avec plus d'intelligence.
Étymologie: εὐσύνετος.

Lexicon Thucydideum

prudentius, more wisely, 4.18.4.