downthrow vs paddling

downthrow

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

  • Ruin; defeat. 

paddling

noun
  • A collective noun for ducks when they are on water. 

  • The act of using a paddle. 

  • An act of corporal punishment consisting of spanking the buttocks with a paddle. 

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