Glasgow: The second city in the British Isles was called Glas-gu in 1301. Numerous etymologies have been proposed, such as clais-dhu, the "black ravine," glaise-dhu, "the black brook," or glas-coed, the "gray wood," but the most probable is that given by Professor Rhys, who holds that the name is from one of the Gaelic pet-names of St. Kentigern, or St. "Mungo," around whose cell the place grew up.

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