correctness vs rectitude

correctness

noun
  • conformity to recognized standards 

  • freedom from error 

  • The state of an algorithm that correctly mirrors its specification. 

  • conformity to the truth or to fact 

rectitude

noun
  • Conformity to the rules prescribed for moral conduct; (moral) uprightness, virtue. 

  • Straightness; the state or quality of having a constant direction and not being crooked or bent. 

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