3 vs trey

3

trey

noun
  • A three penny coin; a thrippence. 

  • The third branch of a deer's antler. 

  • A score of three in cards, dice, or dominoes. 

  • The third bearer of the same personal name in a family, often denoted by suffixed Roman numeral III. 

  • A playing card or die with the rank of three. 

How often have the words 3 and trey occurred in a corpus of books? (source: Google Ngram Viewer )