chaw vs cud

chaw

verb
  • To chew; to grind with one's teeth; to masticate (food, or the cud) 

  • To steal. 

noun
  • Chewing tobacco. 

  • A plug or wad of chewing tobacco. 

cud

verb
  • To bring back into the mouth and chew a second time. 

noun
  • The portion of food which is brought back into the mouth by ruminating animals from their first stomach, to be chewed a second time. 

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