cheapen vs demean

cheapen

verb
  • to decrease the value of; to make cheaper 

  • to become cheaper 

  • to make vulgar 

demean

verb
  • To debase; to lower; to degrade. 

  • To subtract the mean from (a value, or every observation in a dataset). 

  • To mortify. 

  • To humble, humble oneself; to humiliate. 

noun
  • resources; means. 

  • demesne. 

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