πταίω
ptaio
cause to stumble
Appears 5 times across Plato's dialogues.
Frequency by work
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Dictionary (LSJ)
πταίω, 1.122, etc.: fut. πταίσω 2.20: aor. ἔπταισα 9.101, etc.: pf. ἔπταικα 675, 1, 3.48.4, (προσ-) 6.82:— Pass., v. infr. 1: I. trans., cause to stumble or fall, σύνθεσιν ποτὶ ψεύδει Fr. 205, cf. 1 Ki. 4.3:—Pass., to be missed, of things, NA 2.15; τὰ πταισθέντα failures, errors, Demon. 7; ἃ ἐπταίσθη his failures, Comp.Dion.Brut. 3. II. intr., stumble, trip, fall, π. πρός τινι stumble against, fall over, π., ὥσπερ πρὸς ἕρματι, πρὸς τῇ πόλει R. 553b, cf. Pr. 926, 7.26; πρὸς τὰς πέτρας cj. in An. 4.2.3; prov., μὴ δὶς πρὸς τὸν αὐτὸν λίθον πταίειν 31.11.5; also π. περί τινι, μὴ περὶ Μαρδονίῳ πταίσῃ ἡ Ἑλλάς lest Hellas should get a fall over him, i.e. be defeated by him, 9.101. 2. metaph., make a false step or mistake, 2.43, 2.20, 672, etc.; ἐὰν πταίωσί τι when they make a blunder, of medical men, 75.5; οὐκ ἐλάττω, ἐλάχιστα, τὰ πλείω π., 1.122, 4.18, 6.33; ἔν τισι 18.286; λογισμοῖς 380; τῇ μάχῃ, τοῖς ὅλοις, τοῖς πράγμασι, etc., 18.14.13, 3.48.4, 1.10.1, etc.; ἀψευδὴς ὢν καὶ μὴ π. τῇ διανοίᾳ περὶ τὰ ὄντα Tht. 160d; also π. ὑπʼ ἀνάγκας Ph. 215 (lyr.); ὑπό τινος π. τῇ πατρίδι 5.93.2; ἐκ τύχης 2.7.3. 3. π. τῆς ἐλπίδος to be baulked of . . , 8.5.1. 4. ἡ γλῶττα π. stutters, Pr. 875b19.
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