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Webster 1828 Edition

Noun.

The entrails of a deer.

numbles pl ‎(plural only)

(archaic) The entrails of a deer or other animal, used for food.
- 1940, TH White, The Ill-Made Knight:
  In the kitchens the famous cooks were preparing menus which included, for one course alone: ballock broth, caudle ferry, lampreys en gelatine, oysters in civey, eels in sorré, baked trout, brawn in mustard, numbles of a hart, pigs farsed [...].