ὡς ἐπὶ τὸ πολύ

From LSJ

ἀλλὰ μὴν καὶ ἀναπαύσεώς γε δεομένοις ἡμῖν νύκτα παρέχουσι κάλλιστον ἀναπαυτήριον → and again, we need rest; and therefore the gods grant us the welcome respite of night

Source

Greek > English (Woodhouse)

commonly, usually, for the most part, on the average