undesirable vs unperson

undesirable

noun
  • An undesirable person. 

adj
  • objectionable or not likely to please 

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 undesirable and unperson occurred in a corpus of books? (source: Google Ngram Viewer )