freshening vs restoration

freshening

noun
  • The act by which something is freshened. 

restoration

noun
  • The process of bringing an object back to its original state; the process of restoring something. 

  • The return of a former monarchy or monarch to power, usually after having been forced to step down. 

  • The receiving of a sinner to divine favor. 

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