κόραξ δ' ἐπαίνῳ καρδίην ἐχαυνώθη → the flattered crow was filled with pride, the flattered crow became elate in heart
not natural: P. and V. ἐπακτός, ἐπείσακτος, εἰσαγώγιμος (Plato and Euripides, Fragment).