Learn how to say Decapitating correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word decapitate:
cut off the head of (someone):
(as adjective decapitated)
a decapitated body
attempt to undermine (a group or organization) by removing its leaders:
the Church had been decapitated by the arrest and deportation of all its bishops
early 17th century: from late Latin decapitat- ‘decapitated’, from the verb decapitare, from de- (expressing removal) + caput, capit- ‘head’