massacre vs self-blood

massacre

noun
  • The killing of a considerable number (usually limited to people) where little or no resistance can be made, with indiscriminate violence, without necessity, and contrary to civilized norms. 

  • St. Bartholomew's Day Massacre 

  • Any overwhelming defeat, as in a game or sport. 

verb
  • To win against (an opponent) very decisively. 

  • To perform (a work, such as a musical piece or a play) very poorly. 

  • To kill with great force or brutality. 

  • To kill in considerable numbers where little or no resistance can be made, with indiscriminate violence, without necessity, and contrary to civilized norms. (Often limited to the killing of human beings.) 

self-blood

noun
  • The shedding of one's own blood; self-slaughter; suicide. 

  • One's direct progeny or offspring. 

How often have the words massacre and self-blood occurred in a corpus of books? (source: Google Ngram Viewer )