Ἐχθροῖς ἀπιστῶν οὔποτ' ἂν πάθοις βλάβην → Minus dolebis, quo hostibus credes minus → Dem Feind misstrauend bleibst von Schaden du verschont
middle voice (reflexively) of ἀπέχω; to hold oneself off, i.e. refrain: abstain.