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εὐσταλῶς

From LSJ

Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.

Diogenes Laertius, Lives of the Philosophers, Book 2 sec. 32.

French (Bailly abrégé)

adv.
avec agilité, lestement.
Étymologie: εὐσταλής.

Russian (Dvoretsky)

εὐστᾰλῶς: благовоспитанно, прилично (ἀναβεβλημένος Luc.).