anesthetic vs aperient

anesthetic

adj
  • Causing anesthesia; reducing pain sensitivity. 

  • Insensate: unable to feel, or unconscious. 

noun
  • A substance administered to reduce the perception of pain or to induce numbness for surgery and may render the recipient unconscious. 

aperient

adj
  • Having a gentle laxative effect. 

noun
  • A laxative, either in the form of a medicine or a food such as asparagus or hops, which has the effect of moving the bowels, or aiding digestion and preventing constipation. 

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