nark vs tout

nark

verb
  • To annoy or irritate. 

  • To stop. 

  • To serve or behave as a spy or informer. 

  • To complain. 

  • To watch; to observe. 

noun
  • An unpleasant person, especially one who makes things difficult for others. 

  • A police spy or informer. 

tout

verb
  • To flaunt, to publicize/publicise; to boast or brag; to promote. 

  • To spy out the movements of racehorses at their trials, or to get by stealth or other improper means the secrets of the stable, for betting purposes. 

  • To act as a tout; to give a tip on a racehorse. 

  • To look for, try to obtain; used with for. 

  • To spy out information about (a horse, a racing stable, etc.). 

  • To give a tip on (a racehorse) to a person, with the expectation of sharing in any winnings. 

noun
  • Someone advertising for customers in an aggressive way. 

  • A person, at a racecourse, who offers supposedly inside information on which horse is likely to win. 

  • In the game of solo, a proposal to win all eight tricks. 

  • An informer in the Irish Republican Army. 

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