II.Pass. to be made trustworthy, give a pledge or warrant, ὅρκῳ πιστωθῆναί τινι to bind oneself to another by oath, Od.
2.to feel trust or confidence, i. e. to trust, to be persuaded, πιστωθῆναι ἐνὶ θυμῷ id=Od.; πιστωθεὶς ὅτι . . , feeling confidence that . . , Soph.
III.Mid. to give mutual pledges of fidelity, exchange troth, χεῖράς τ᾽ ἀλλήλων λαβέτην καὶ πιστώσαντο Il.:— πιστοῦσθαί τινα ὑφ᾽ ὅρκου to secure his good faith by oaths, Soph.
2.to confirm, prove, make good, guarantee, τι Polyb., Luc.
