displume vs gazump

displume

verb
  • To strip of an award. 

  • To deprive of feathers or plumes. 

gazump

verb
  • To swindle; to extort. 

  • To trump or preempt; to reap the benefit underhandedly from a situation that someone else has worked to create. 

  • To buy a property by bidding more than the price of an existing, accepted offer. 

  • To raise the selling price of something (especially property) after previously agreeing to a lower one. 

noun
  • The act of gazumping. 

  • A politician who takes bribes. 

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