caper vs shrub celery

caper

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

  • Playful behaviour. 

  • 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. 

verb
  • To jump as part of a dance. 

  • To engage in playful behaviour. 

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

shrub celery

noun
  • The crisp, thick leafstalk of the celery plant; used as a vegetable, or eaten raw. 

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