βέβαιος
Etym. βαίνω
I. "firm, steady, steadfast, sure, certain", Aesch., etc.; βεβαιότερος κίνδυνος a "surer" game, Thuc.
2. of persons, "steadfast, steady sure, constant", Aesch., etc.; c. inf., βεβαιότεροι μηδὲν νεωτεριεῖν "more certain" to make no change, Thuc.
3. τὸ βέβαιον "certainty, firmness, resolution", Hdt., Thuc.
II. adv. -ως, Aesch., etc.; comp. -ότερον, Thuc.; Sup. -ότατα, id=Thuc.