ruse vs scam

ruse

noun
  • An action intended to deceive; a trick. 

  • Cunning, guile, trickery. 

verb
  • To deceive or trick using a ruse. 

scam

noun
  • A fraudulent deal. 

  • Something that is promoted using scams. 

verb
  • To defraud or embezzle. 

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