но

From LSJ

νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)

Source

Russian > Greek

πλήν, πλάν, ἀλλά, μενοῦνγε, τοίνυν, μέντοι