утренняя заря

From LSJ

μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs

Source

Russian > Greek

ὄρθρος, ἕως, ἠώς, ἀώς, αὔως