gizzard

 
Pronunciation: /ˈgɪzəd/

noun

  • a muscular, thick-walled part of a bird’s stomach for grinding food, typically with grit.
  • a muscular stomach of some fish, insects, molluscs, and other invertebrates.

Origin:

late Middle English giser: from Old French, based on Latin gigeria 'cooked entrails of fowl'. The final -d was added in the 16th century