refreshing vs sapping

refreshing

noun
  • The action of refresh; refreshment given or received. 

  • That which gives refreshment. 

adj
  • That refreshes someone; pleasantly fresh and different; granting vitality and energy. 

  • Serving to refresh, particularly with respect to an electronic screen, or a browser window or similar computer application. 

sapping

noun
  • The act by which something is sapped or depleted. 

  • The act of excavating trenches. 

  • The act of being struck with a sap or club. 

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