folkly vs municipal

folkly

adj
  • Of or belonging to the folk. 

municipal

adj
  • Of or pertaining to the internal affairs of a nation. 

  • Of or pertaining to a municipality (a city or a corporation having the right of administering local government). 

noun
  • A financial instrument issued by a municipality. 

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