ἀηδόνιον
From LSJ
οἷς πρόθεσίς ἐστιν ἀδικεῖν, παρ' αὐτοῖς οὐδὲ δικαία ἀπολογία ἰσχύει → not even a just excuse means anything to those bent on injustice | the tyrant will always find a pretext for his tyranny | any excuse will serve a tyrant
English (LSJ)
τό, Dim. of ἀηδών, prob.l.in D.Chr.66.11.
Spanish (DGE)
-ου, τό pequeño ruiseñor D.Chr.66.11.