hypnotic vs numbing

hypnotic

noun
  • A person who is, or can be, hypnotized. 

  • A soporific substance. 

adj
  • Of, or relating to hypnosis or hypnotism. 

  • Inducing sleep; soporific. 

numbing

noun
  • An act by which something is numbed. 

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