butchering vs uxoricide

butchering

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

uxoricide

noun
  • One who murders his or her wife. 

  • The murdering of one's own wife. 

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