πίστις πίστις, ιος, ἡ, πείθομαι trust in others, faith, Lat. fides, fiducia, Hes., Theogn., Attic; c. gen. pers. faith or belief in one, Eur.:— generally, persuasion of a thing, confidence, assurance, Pind., Attic good faith, trustworthiness, faithfulness, honesty, Lat. fides, Theogn., Hdt., Attic in a commercial sense, credit, trust, πίστις τοσούτων χρημάτων ἐστί μοι παρά τινι I have credit for so much money with him, Dem.; εἰς πίστιν διδόναι τί τινι Dem. in Theol. faith, belief, as opp. to sight and knowledge, NTest. that which gives confidence: hence, an assurance, pledge of good faith, warrant, guarantee, Soph., Eur.; πίστιν καὶ ὅρκια ποιεῖσθαι to make a treaty by exchange of assurances and oaths, Hdt.; οὔτε π. οὔθʼ ὅρκος μένει Ar.; πίστιν διδόναι to give assurances, Hdt.; διδόναι καὶ λαμβάνειν to interchange them, Xen.:—of an oath, θεῶν πίστεις ὀμνύναι Thuc.; πίστιν ἐπιτιθέναι or προστιθέναι τινί Dem.: —φόβων π. an assurance against fears, Eur. a means of persuasion, an argument, proof, such as used by orators, Plat., etc.