numb vs piteous

numb

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

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

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). 

piteous

adj
  • Provoking pity, compassion, or sympathy. 

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