fettering vs foiling

fettering

noun
  • The act by which something is fettered or constricted. 

foiling

noun
  • The act by which something is foiled; prevention of success. 

  • A foil. 

  • The track of game, such as deer, in the grass. 

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