liquidation vs matricide

liquidation

noun
  • Murder of dehumanized victims. 

  • The act of exchange of an asset of lesser liquidity with a more liquid one, such as cash. 

  • The selling of the assets of a business as part of the process of dissolving the business. 

matricide

noun
  • A person who kills his or her mother. 

  • The killing of one's mother. 

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