belletristic vs poetic

belletristic

adj
  • Written or appreciated for aesthetic value rather than content 

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

poetic

adj
  • Relating to poetry. 

  • Connecting to the soul of the beholder. 

  • Characteristic of poets; romantic, imaginative, etc. 

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