ορθόπνους

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

Source

Greek Monolingual

ὀρθόπνους, -ουν και -οος, -οον (Α)
ορθοπνοϊκός.
[ΕΤΥΜΟΛ. < ορθ(ο)- + -πνους (< πνοή), πρβλ. μικρόπνους].