ἐχυρῶς

French (Bailly abrégé)

adv.
solidement, sûrement;
Cp. ἐχυρώτερον.
Étymologie: ἐχυρός.

Russian (Dvoretsky)

ἐχυρῶς: надежно, достоверно Thuc.

Lexicon Thucydideum

firme, firmly, 8.24.4,
certo, certainly, 5.26.3, [nonnulli codd. several manuscripts ἰσχυρῶς]