Abbott-Smith Manual Greek Lexicon
πταίω (G4417)
5 πταίω , [in LXX chiefly for נגף ni.;] trans., to cause to stumble ( I Ki 4:3 , cf. Deiss., BS , 68 1 ). Intrans., to stumble . Metaph., in moral sense, Ro 11:11 , Ja 2:10 3:2 , II Pe 1:10 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain