ὀρθοῦσθαι

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

Greek > English (Woodhouse Verbs Reversed)

(see also ὀρθόω): succeed, arise from sitting, come right, get up from sitting, stand upright