caper vs somersault

caper

verb
  • To jump as part of a dance. 

  • To engage in playful behaviour. 

  • To leap or jump about in a sprightly or playful manner. 

noun
  • Playful behaviour. 

  • The pungent grayish green flower bud of the European and Oriental caper (Capparis spinosa), which is pickled and eaten. 

  • The capercaillie. 

  • A playful leap or jump. 

  • A crime, especially an elaborate heist, or a narrative about such a crime. 

  • A vessel formerly used by the Dutch; privateer. 

  • A plant of the genus Capparis. 

  • A jump while dancing. 

  • A prank or practical joke. 

somersault

verb
  • To perform a somersault. 

noun
  • Starting on one's feet, an instance of rotating one's body 360 degree while airborne or on the ground, with one's feet passing over one's head. 

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