rectitude vs righteousness

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. 

righteousness

noun
  • Holiness; conformity of life to the divine law. 

  • The act or conduct of one who is righteous. 

  • The quality or state of being righteous. 

  • A righteous act, or righteous quality. 

  • The state of being right with God; justification; the work of Christ, which is the ground justification. 

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