foiling vs quelling

foiling

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

  • A foil. 

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

quelling

noun
  • The act by which something is quelled. 

adj
  • causing something to quell or be quelled 

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