sea wolf vs swashbuckler

sea wolf

swashbuckler

noun
  • A daring adventurer. 

  • A kind of period adventure story with flashy action and lighthearted tone. 

  • A swordsman or fencer who engages in showy or extravagant sword play. 

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