bloodletting vs killing

bloodletting

noun
  • A circumstance, such as a battle, where a large amount of blood is likely to be spilled through violence. 

  • The archaic practice of treating illness by removing some blood, believed to be tainted, from the stricken person. 

  • The diminishment of any resource with the hope that this will lead to a positive effect. 

killing

noun
  • An instance of someone being killed. 

  • A large amount of money. 

adj
  • That makes one ‘die’ with laughter; very funny. 

  • That literally deprives of life; lethal, deadly, fatal. 

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