behead means to deliberately remove the head of; to cut off (someone's) head.
behead is pronounced /bɪˈhɛd/.
Etymology
From Middle English beheden, bihefden, biheveden, from Old English behēafdian (“to behead”), equivalent to be- (“off, away”) + head.
verb
- To deliberately remove the head of; to cut off (someone's) head.““For a while it was hand-to-hand between us,
then blood went curling along the currents
and I beheaded Grendel's mother in the hall
with a mighty sword.”]”