belletristic vs erudite

belletristic

adj
  • Written or appreciated for aesthetic value rather than content 

  • Of, pertaining to, or having the characteristics of belles-lettres. 

erudite

adj
  • Learned, scholarly, with emphasis on knowledge gained from books. 

noun
  • a learned or scholarly person 

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