boost vs tout

boost

verb
  • To help or encourage (something) to increase or improve; to assist in overcoming obstacles. 

  • To lift or push from behind (one who is endeavoring to climb); to push up. 

  • To steal. 

  • To give a booster shot to. 

  • To amplify; to signal boost. 

  • To jump-start a vehicle by using cables to connect the battery in a running vehicle to the battery in a vehicle that won't start. 

noun
  • A positive intake manifold pressure in cars with turbochargers or superchargers. 

  • A coordinate transformation that changes velocity. 

  • A push from behind, as to one who is endeavoring to climb. 

  • Something that helps, or adds power or effectiveness; assistance. 

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 boost and tout occurred in a corpus of books? (source: Google Ngram Viewer )