εὐκαρδίως
From LSJ
τῶν Λειβηθρίων ἀμουσότερος → more uncultured than Leibethrans, more uncultured than the people of Leibethra, lowest degree of mental cultivation
French (Bailly abrégé)
adv.
d’un cœur ferme.
Étymologie: εὐκάρδιος.
Russian (Dvoretsky)
εὐκαρδίως: мужественно, стойко Eur.