ὀνεχώρησε

From LSJ

τὰ ἀφανῆ τοῖς φανεροῖς τεκμαίρου → analyze the unknown based on the known

Source

Greek (Liddell-Scott)

ὀνεχώρησε: ἀνεχώρ-, ἴδε ὀνάλουμα.