grace vs impiety

grace

verb
  • To supply with heavenly grace. 

  • To dignify or raise by an act of favour; to honour. 

  • To add grace notes, cadenzas, etc., to. 

  • To adorn; to decorate; to embellish and dignify. 

noun
  • A short prayer of thanks before or after a meal. 

  • An allowance of time granted to a debtor during which he or she is free of at least part of his normal obligations towards the creditor. 

  • Free and undeserved favour, especially of God; unmerited divine assistance given to humans for their regeneration or sanctification, or for resisting sin. 

  • In the games of patience or solitaire: a special move that is normally against the rules. 

  • A grace note. 

  • Charming, pleasing qualities. 

  • Elegant movement; balance or poise. 

  • An act or decree of the governing body of an English university. 

impiety

noun
  • The lack of respect for a god or something sacred. 

  • An impious act. 

  • The state of being impious. 

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