deathblow vs homicide

deathblow

noun
  • A strike or blow that leads to death, especially a coup de grace. 

  • Something that prevents the completion, or ends the existence, of a project etc.; a fatal setback. 

homicide

noun
  • The killing of one person by another, whether premeditated or unintentional. 

  • The department within a police force that investigates cases of homicide. 

  • A person who kills another. 

  • A victim of homicide; a person who has been unlawfully killed by someone else. 

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