cheapen vs rasher

cheapen

verb
  • to make vulgar 

  • to become cheaper 

  • to decrease the value of; to make cheaper 

rasher

verb
  • To cut into rashers. 

noun
  • A strip, a piece (of something, such as ham, bacon, etc). 

  • A strip of bacon; a piece of bacon. 

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