ἕως οὗ ἡμέρα διαυγάσῃ

From LSJ

πέτρην κοιλαίνει ρανὶς ὕδατος ἐνδελεχείῃ → constant dropping wears away a stone, constant dripping will wear away the hardest stone, little strokes fell big oaks, constant dripping wears the stone, constant dropping wears the stone, constant dripping will wear away a stone

Source

Russian (Dvoretsky)

пока не рассветет

Dutch (Woordenboekgrieks.nl)

totdat de dag haar licht verspreidt