buccaneer vs rustler

buccaneer

noun
  • A pirate. 

  • Any of a group of seamen who cruised on their own account on the Spanish Main and in the Pacific in the 17th century, who were similar to pirates but did not prey on ships of their own nation. 

verb
  • To engage in piracy against any but one's own nation's ships. 

rustler

noun
  • One who rustles; a cattle (or other livestock) thief. 

  • A bovine animal that can care for itself in any circumstances. 

  • That which makes a rustling noise. 

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