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βεβαίως

Μὴ φῦναι τὸν ἅπαντα νικᾷ λόγον -> Not to be born is, past all prizing, best.
Sophocles, Oedipus Coloneus l. 1225

French (Bailly abrégé)

adv.
solidement, fermement, sûrement;
Cp. βεβαιότερον, Sp. βεβαιότατον.
Étymologie: βέβαιος.

Russian (Dvoretsky)

βεβαίως:
1) уверенно, с уверенностью, наверняка, твердо (εὖ φρονεῖν Eur.; β. οὐκ᾽ οἶδα Dem.; ἀπαγγέλλειν Plut.);
2) устойчиво, постоянно, оседло (Ἑλλὰς β. οἰκουμένη Thuc.);
3) надежно, прочно (κλῃστός Thuc.).

English (Woodhouse)

βεβαίως = firmly, positively, securely, steadfastly, surely

⇢ Look up "βεβαίως" on Google | Wiktionary | LSJ full text search (Translation based on the reversal of Woodhouse's English to Ancient Greek dictionary)