fatality vs matricide

fatality

noun
  • A person killed. 

  • An accident that causes death. 

  • Tendency to death, destruction or danger, as if by decree of fate. 

  • The state proceeding from destiny; invincible necessity, superior to, and independent of, free and rational control. 

  • Death. 

  • That which is decreed by fate or which is fatal; a fatal event. 

  • A move used to deliver a coup de grâce to a defeated opponent. 

matricide

noun
  • A person who kills his or her mother. 

  • The killing of one's mother. 

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