πταίειν
From LSJ
Θησεύς τινʹ ἡμάρτηκεν ἐς σʹ ἁμαρτίαν; (Euripides, Hippolytus 319) → Hath Theseus wronged thee in any wise?
Greek > English (Woodhouse Verbs Reversed)
(see also πταίω): stumble, be at fault, be disappointed, be mistaken, be wrong, come to grief, fall over, have a spill, make a false step, make a mistake, make a slip, stumble against
Lexicon Thucydideum
offendere, labi, to strike against, stumble, 1.122.1, 2.43.5, 4.18.4. 5.16.1. 6.12.1, 6.33.5, [boni codd. good manuscripts πταίωσιν]. 8.11.3.