quinity vs quintuplet

quinity

noun
  • Synonym of quintet: A group of five. 

  • Synonym of fiveness: The state of being five or having 5 parts. 

quintuplet

noun
  • A group of five, particularly (music) a tuplet of five notes to be played in the time for four. 

  • A cycle adapted for five riders, all of whom can assist in the propulsion. 

  • One of a group of five, particularly babies born from the same mother during the same birth. 

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