diaphoretic vs sudatory

diaphoretic

adj
  • Generating sweat or perspiration. 

noun
  • A product or agent which induces or promotes perspiration. 

sudatory

adj
  • Sweating; perspiring. 

noun
  • A sudatorium; a hot room used to induce sweating. 

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