laxative vs lenitive

laxative

adj
  • Having the effect of moving the bowels, or aiding digestion and preventing constipation. 

noun
  • Any substance, such as a food or in the form of a medicine which has a laxative effect. 

lenitive

adj
  • Laxative; easing the bowels. 

  • Mild; gentle. 

  • Analgesic, able to reduce pain or suffering. 

noun
  • A laxative. 

  • An analgesic or other source of relief from pain 

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