belletristic vs bookly

belletristic

adj
  • Written or appreciated for aesthetic value rather than content 

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

bookly

adj
  • Of or pertaining to books; literary. 

  • Learned from books; bookish; by-the-book. 

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