A damp, boggy piece of land or a small stream running through marshy ground.
Related to 'bog' and possibly influenced by Irish and Scottish Gaelic words for swampy terrain; the 'r' in brog may derive from a blend of 'brook' and 'bog.'
The word reveals how regional dialects create new words by smooshing together related terms—'brog' combines the wetness of a bog with the flow of a brook.
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