птицегадание

From LSJ

θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → it is grasped only by means of an ignorance superior to intellection, it may be immediately cognised only by means of a non-intellection superior to intellection

Source

Russian > Greek

ὀρνιθεία, οἰωνισμός, οἰωνοσκοπία