sextuplet vs sixer

sextuplet

noun
  • One of a group of six persons or animals born from the same mother during the same birth. 

  • A group of six notes played in the time of four, with accents on the first and fourth notes; a double triplet. 

  • A group of six objects. 

  • A group of six notes played in the time of four, with an accent only on the first note. 

  • A group of six notes played in the time of four, with accents on the first, third and fifth notes. 

sixer

noun
  • A Cub Scout or Brownie who leads a group of six. Whence also Senior Sixer. 

  • A shot in which the ball passes over the boundary without touching the ground, for which the batting team is awarded 6 runs; a six. 

  • A prison sentence of six months 

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