cud vs tooth

cud

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. 

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

tooth

noun
  • A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating. 

  • An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb. 

  • The rough surface of some kinds of cel or other films that allows better adhesion of artwork. 

  • A pointed projection from the margin of a leaf. 

  • A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain. 

  • A sharp projection on the blade of a saw or similar implement. 

  • Liking, fondness (compare toothsome). 

  • A projection or point in other parts of the body resembling the tooth of a vertebrate animal. 

verb
  • To provide or furnish with teeth. 

  • To indent; to jag. 

  • To lock into each other, like gear wheels. 

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