capriole vs pole-vault

capriole

verb
  • To leap; to caper. 

  • To cause (one's mounted horse) to perform a capriole. 

noun
  • A leap or caper, as in dancing. 

  • A leap that a horse makes with all fours, upwards only, without advancing, but with a kick or jerk of the hind legs when at the height of the leap. 

pole-vault

verb
  • To perform a pole vault 

  • To vault over something using a pole vault 

How often have the words capriole and pole-vault occurred in a corpus of books? (source: Google Ngram Viewer )