ᾔνουν

From LSJ

ἀμβλύς εἰμι καὶ κατηρτυκὼς κακῶν → I'm jaded and with much experience of evils

Source

Greek Monotonic

ᾔνουν: παρατ. του αἰνέω.

Russian (Dvoretsky)

ᾔνουν: impf. к αἰνέω.