vig vs vigorish

vig

noun
  • Synonym of vigorish (“commission, finder's fee, or similar extra charge”) 

  • Synonym of vigorish (“charge taken on bets”) 

  • Synonym of vigorish (“interest from a loan, as from a loan shark”) 

vigorish

noun
  • A commission or similar extra charge. 

  • A charge taken on bets, as by a bookie or gambling establishment. 

  • The interest on a loan of money, especially for loans made by a usurer or loan shark. 

  • An amount owed on account of or payment of a bookie's charge or of interest. 

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