Saturnalian vs bacchic

Saturnalian

adj
  • riotously merry; dissolute 

  • of or pertaining to Saturnalia 

bacchic

adj
  • Of or relating to Bacchus; hence, jovial, or riotous, with intoxication; bacchanalian. 

  • Relating to a bacchius. 

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