trey vs trio

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. 

trio

noun
  • A piece of music written for three musicians. 

  • A group of three musicians. 

  • A group of three people or things. 

  • Any cocktail made with a spirit, a liqueur, and a creamy ingredient. 

  • A passage in the middle of a minuet, frequently in a different key. 

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