butchering vs havoc

butchering

noun
  • The act by which someone or something is butchered; a slaughter or killing. 

havoc

noun
  • Mayhem. 

  • Widespread devastation and destruction. 

verb
  • To cause havoc. 

  • To pillage. 

intj
  • A cry in war as the signal for indiscriminate slaughter. 

How often have the words butchering and havoc occurred in a corpus of books? (source: Google Ngram Viewer )