chow vs sustenance

chow

noun
  • Food, especially snacks. 

  • A prefecture or district of the second rank in China, or the chief city of such a district. 

  • A run of three consecutive tiles of the same suit. 

  • Unripe, or partially ripened, fruit seasoned and served as a dish, e.g. pineapple chow or mango chow. 

  • A Chow Chow. 

verb
  • To eat. 

  • To call a discarded tile to produce a chow. 

sustenance

noun
  • Something that provides support or nourishment. 

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