protectability vs reassurance

protectability

noun
  • The ability to receive protection. 

reassurance

noun
  • Reinsurance. 

  • The act of confirming someone's opinion or impression. 

  • The feeling of being reassured, of having confidence restored, of having apprehensions dispelled. 

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