repeatedly
From LSJ
αἰτῶ δ' ὑγίειαν πρῶτον, εἶτ' εὐπραξίαν, τρίτον δὲ χαίρειν, εἶτ' ὀφείλειν μηδενί → first health, good fortune next, and third rejoicing; last, to owe nought to any man
P. and V. πολλάκις, θαμά (Plato), P. συχνόν, συχνά, Ar. and V. πολλά, Ar. and P. πυκνά.