capriole vs jounce

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. 

verb
  • To leap; to caper. 

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

jounce

noun
  • A movement, such as a jolt or a shake. 

  • The fourth derivative of the position vector with respect to time; the time derivative of jerk. 

verb
  • To jolt; to shake, especially by rough riding or by driving over obstructions. 

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