cardsharp vs felon

cardsharp

noun
  • A professional cheater at card games. 

felon

noun
  • A person who has been tried and convicted of a felony. 

  • A wicked person. 

  • A bacterial infection at the end of a finger or toe. 

  • A person who has committed a felony. 

adj
  • wicked; cruel 

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