belletristic vs writerly

belletristic

adj
  • Written or appreciated for aesthetic value rather than content 

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

writerly

adj
  • of or pertaining to a writer 

  • Characteristic of a writer; using well-chosen words or well-crafted sentences. 

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