hebetate vs numb

hebetate

verb
  • To render obtuse; to dull; to blunt. 

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

numb

verb
  • To cause (a feeling) to be less intense. 

  • To cause to become numb (physically or emotionally). 

  • To cause (the mind, faculties, etc.) to be less acute. 

  • To become numb (especially physically). 

adj
  • Physically unable to feel, not having the power of sensation. 

  • Emotionally unable to feel or respond in a normal way. 

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