Strong's G4422 · Greek

πτοέω

ptoeo · pto-eh'-o

probably akin to the alternate of 4098 (through the idea of causing to fall) or to 4072 (through that of causing to fly away); to scare

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 2 πτοέω , -ῶ , [in LXX chiefly for חתת ni.;] to terrify . Pass., to be terrified : Lk 21:9 24:37 (WH, mg., θροηθέντες ).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain