coup de grâce vs scalping

coup de grâce

noun
  • A final blow or shot given to kill a wounded person or animal. 

  • A remarkable finishing action. 

scalping

noun
  • The action by which someone is scalped. 

  • A legitimate method of arbitrage of small price gaps created by the bid-ask spread. 

  • A fraudulent form of market manipulation in which a person buys shares immediately before recommending the shares to others, thus driving the price up. 

How often have the words coup de grâce and scalping occurred in a corpus of books? (source: Google Ngram Viewer )