ternion vs trey

ternion

noun
  • The number three; three things together; a ternary or triplet. 

  • A section of paper for a book containing three double leaves or twelve pages. 

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 ternion and trey occurred in a corpus of books? (source: Google Ngram Viewer )