contribute vs dupe

contribute

verb
  • To give something that is or becomes part of a larger whole. 

dupe

noun
  • A duplicate of an order receipt printed for kitchen staff. 

  • A duplicate of a photographic image. 

  • A person who has been deceived. 

  • A duplicate. 

  • A counterfeit; a fake. 

verb
  • To duplicate. 

  • To swindle, deceive, or trick. 

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