fading vs flying

fading

noun
  • The process by which something fades; gradual diminishment. 

flying

noun
  • The action or process of sustained motion through the air. 

  • The action of sustained hydrodynamic lift on hydrofoils lifting the vessel hull lifted out of the water, for sustained motion across water. 

  • An act of flight. 

adj
  • That flies or can fly. 

  • Not secured by yards. 

  • Capable of foiling. 

  • Capable of speed 

  • Designating a cattle brand consisting of a letter extended on both sides with tilde-like curved lines. 

  • Brief or hurried. 

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