impulsion vs vampirism

impulsion

noun
  • The act of impelling or driving onward, or the state of being impelled; the sudden or momentary agency of a body in motion on another body; also, the impelling force, or impulse. 

  • Influence acting unexpectedly or temporarily on the mind; sudden motive or influence; impulse. 

vampirism

noun
  • extortion 

  • practices associated with vampires, in particular blood-drinking and the draining of a victim's life-force. 

  • Systemic lupus erythematosus (autoimmune disease) 

  • the state of being a vampire 

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