catholicon vs folk medicine

catholicon

noun
  • A supposed universal remedy. 

  • A large urban church used for large gatherings. 

folk medicine

noun
  • A particular medicinal remedy used in such traditional medical practices. 

  • Traditional medical practices developed and used by non-physicians, typically involving customary homespun techniques and medicinal remedies derived from native plants. 

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