downthrow vs whaling

downthrow

noun
  • Ruin; defeat. 

  • A depression of the strata on one side of a fault 

whaling

noun
  • A beating. 

  • The practice of spotting whales. 

  • The practice of hunting whales. 

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