Strong's G3990 — πελεκίζω (verb)
pelekizo (pel-ek-id'-zo) v.
1. to chop off (the head), i.e. truncate
[from a derivative of G4141 (meaning an axe)]
KJV: behead 
Root(s): G4141 
Hebrew root: πλήσσω
Occurrences: 1