atlatl vs nine

atlatl

noun
  • A spearthrower consisting of a wooden stick with a thong or perpendicularly protruding hook on the rear end that grips a grove or socket on the butt of its accompanying spear (or dart), intended to steady the spear immediately prior to throwing, to increase its potential range when thrown, and to increase its force of penetration of the target. 

nine

noun
  • A nine-millimeter semi-automatic pistol. 

  • A playing card with nine pips. 

  • A baseball club, team, or lineup (composed of nine players). 

  • The digit or figure 9. 

  • A statistical unit of proportion (of reliability, purity, etc.). 

num
  • Describing a group or set with nine elements. 

  • A numerical value equal to 9; the number following eight and preceding ten. 

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