angel of death vs murder

angel of death

noun
  • A type of serial killer who is employed as a caregiver and kills people under their care. 

  • A shinigami. 

  • The Grim Reaper. 

  • An angel which attends to death, collecting souls at death, ending life at the appointed time of death. 

  • Azrael. 

  • Death, one of the Four Horsemen of the Apocalypse. 

murder

noun
  • The crime of deliberately killing a person without moral justification. 

  • The act of deliberate killing of a person or other being without moral justification, especially with malice aforethought. 

  • Something terrible to endure. 

  • A group of crows; the collective noun for crows. 

  • The commission of an act which abets the commission of a crime the commission of which causes the death of a human. 

verb
  • To botch or mangle. 

  • To devour, ravish. 

  • To kick someone's ass or chew someone out (used to express one’s anger at somebody). 

  • To defeat decisively. 

  • To deliberately kill (a person or persons) without justification, especially with malice aforethought. 

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