Hellenic vs belletristic

Hellenic

adj
  • Of or relating to Hellas (Greece) or the Hellenes (Greeks). 

  • Of or relating to the ancient Greek culture and civilization before the Hellenistic period. 

name
  • The Greek language and its dialects from the earliest records (Linear B inscriptions, about 1600-1300 B.C.E.) to the present Modern Greek. 

belletristic

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

  • Written or appreciated for aesthetic value rather than content 

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