biog vs hagiography

biog

noun
  • A biography. 

hagiography

noun
  • A biography which expresses reverence and respect for its subject. 

  • The study of saints and the documentation of their lives. 

  • A biography of a saint. 

  • A biography which is uncritically supportive of its subject, often including embellishments or propaganda. 

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