becloak vs shill

becloak

verb
  • To cover or surround, as with a cloak. 

shill

verb
  • To put under cover; to sheal. 

  • To promote or endorse in return for payment, especially dishonestly. 

noun
  • Any person paid to endorse a product. 

  • An accomplice at a confidence trick during an auction or gambling game. 

  • A house player in a casino. 

  • A person paid to endorse a product while pretending to be impartial. 

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