cod vs gammon

cod

noun
  • The Atlantic cod, Gadus morhua. 

  • The cocoon of a silkworm. 

  • Other not closely related fish which are similarly important to regional fisheries, as the hapuku and cultus cod. 

  • The sea fish of the family Gadidae which are sold as "cod", as haddock (Melanogrammus aeglefinus) and whiting (usually Merlangius merlangus). 

  • A joke or an imitation. 

  • The meat of any of the above fish 

  • Other not closely related fish which resemble the Atlantic cod, as the rock cod (Lotella rhacina) and blue cod (Parapercis colias). 

  • A stupid or foolish person. 

  • The sea fish of the genus Gadus generally, as inclusive of the Pacific cod (Gadus macrocephalus) and Greenland cod (Gadus ogac or Gadus macrocephalus ogac). 

verb
  • To attempt to deceive or confuse; To joke; To kid. 

adj
  • Bad. 

  • Having the character of imitation; jocular. 

gammon

noun
  • A rope fastening a bowsprit to the stem of a ship (usually called a gammoning). 

  • Backgammon (the game itself). 

  • A victory in backgammon achieved when the opponent has not borne off a single stone. 

  • A cut of quick-cured pork leg. 

  • A middle-aged or older right-wing, reactionary white man, or such men collectively. 

verb
  • To lash with ropes (on a ship). 

  • To cure bacon by salting. 

  • To beat by a gammon (without the opponent bearing off a stone). 

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