уверенно
From LSJ
Cras amet qui numquam amavit quique amavit cras amet → May he love tomorrow who has never loved before; And may he who has loved, love tomorrow as well.
Russian > Greek
πιστευτικῶς, ἀπταίστως, ἔμπεδον, ἐμπέδως, πεπεισμένως, θαρσαλέως, θαρραλέως, ἀπτώτως, βεβαίως, τεθαρρηκότως, σάφα