demerit vs worthiness

demerit

noun
  • A quality of being inadequate; a fault; a disadvantage 

  • A mark given for bad conduct to a person attending an educational institution or serving in the army. 

  • That which one merits or deserves, either of good or ill; desert. 

worthiness

noun
  • The state or quality of being qualified or eligible. 

  • The result or product of having value or merit. 

  • The result or product of being qualified or eligible. 

  • The state or quality of having value or merit. 

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