cathartic vs lenitive

cathartic

noun
  • A laxative. 

adj
  • Purgative; inducing mental or physical catharsis. 

  • That which releases emotional tension, especially after an overwhelming experience. 

lenitive

noun
  • A laxative. 

  • An analgesic or other source of relief from pain 

adj
  • Mild; gentle. 

  • Analgesic, able to reduce pain or suffering. 

  • Laxative; easing the bowels. 

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