sudatorium vs sudorific

sudatorium

noun
  • A hot room used to induce sweating, steam room, steam bath, sauna. 

sudorific

noun
  • A medicine that produces sweating. 

adj
  • In a state of perspiration; covered in sweat; sudoriferous, sweaty. 

  • That produces sweating. 

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