die hard

From LSJ

οὐκ ἔστι λέουσι καὶ ἀνδράσιν ὅρκια πιστά → there are no pacts between lions and men, between lions and men there are no oaths of faith, there can be no covenants between men and lions

Source

English > Greek (Woodhouse Extra)

δυσθανατεῖν