Strong's G3990 · Greek

πελεκίζω

pelekizo · pel-ek-id'-zo

from a derivative of 4141 (meaning an axe); to chop off (the head), i.e. truncate

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 1 *† πελεκίζω ( πέλεκυς , a battle-axe ), to out off with an axe , esp. to behead : c. acc., Re 20:4 (Polyb., al.).† 

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