cheapen vs ennoble

cheapen

verb
  • to become cheaper 

  • to decrease the value of; to make cheaper 

  • to make vulgar 

ennoble

verb
  • To perform on a fabric the industrial processes of dry-cleaning, printing and embossing, and sizing and finishing. 

  • To bestow with nobility, honour or grace. 

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