bocce vs boules

bocce

noun
  • A game, similar to bowls or pétanque, played on a long, narrow, dirt-covered court 

  • One of the eight balls that the player throws in a game of bocce. 

boules

noun
  • bowls; a game played with metal balls. 

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