picaroon vs rapparee

picaroon

noun

  • A rogue. 

  • A pirate or picaro. 

  • A pirate ship. 

verb

  • To behave as a pirate. 

rapparee

noun

  • A bandit or brigand. 

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