immobility vs numbness

immobility

noun
  • The quality of not moving. 

  • The state or condition of being unable to change one's location, move or be moved. 

numbness

noun
  • Absent or reduced sensitivity to cutaneous stimulation. 

  • Inability or reduced ability to experience emotion. 

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