cob1
¦ noun
1. Brit. a round loaf of bread.
3. (also cobnut) a hazelnut or filbert.
4. a powerfully built, short-legged horse.
5. a male swan.
6. Brit. a roundish lump of coal.
Origin
ME (denoting a strong man or leader): of unknown origin.
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cob2
¦ noun Brit. a mixture of compressed clay and straw used, especially formerly, for building walls.
Origin
C17: of unknown origin.