cud vs rechew

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. 

rechew

verb

  • To chew again. 

  • To go over or ponder again. 

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