leper vs unperson

leper

noun
  • Synonym of outcast: A person who is shunned, a pariah. 

  • A person who has leprosy, a person suffering from Hansen's disease. 

unperson

noun
  • A human who has been stripped of rights, identity or humanity. 

verb
  • To strip (a human being) of rights, identity or humanity. 

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