painful vs sudorific

painful

adj
  • Causing pain or distress, either physical or mental. 

  • Afflicted or suffering with pain (of a body part or, formerly, of a person). 

  • Very bad, poor. 

  • Requiring effort or labor; difficult, laborious. 

sudorific

adj
  • That produces sweating. 

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

noun
  • A medicine that produces sweating. 

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