knight of the road vs whaler

knight of the road

whaler

noun
  • One who hunts whales; a person employed in the whaling industry. 

  • A large, strong person. 

  • Any shark of the family Carcharhinidae; a requiem shark. 

  • A seagoing vessel used for hunting whales. 

  • One who whales (flogs or beats). 

  • Something of unusually great size, a whopper, a whacker. 

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