permissibility vs rightness

permissibility

noun
  • The condition of being permissible; legitimacy; allowability. 

  • A permissible act. 

rightness

noun
  • The characteristic of being right; correctness. 

  • The result or product of being right; something correct. 

  • The property of being on, or moving toward, the right. 

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