gazump vs rook

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. 

rook

verb
  • To cheat or swindle. 

noun
  • A cheat or swindler; someone who betrays. 

  • mist; fog; roke 

  • A castle or other fortification. 

  • A European bird, Corvus frugilegus, of the crow family. 

  • A rookie. 

  • A piece shaped like a castle tower, that can be moved only up, down, left or right (but not diagonally) or in castling. 

  • A type of firecracker used by farmers to scare birds of the same name. 

  • A trick-taking game, usually played with a specialized deck of cards. 

  • A bad deal; a rip-off. 

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