Luguvallium

Luguvalium was a Roman town in northern Britain in antiquity. It was located within present-day Carlisle, Cumbria, and may have been the capital of the 4th-century province of Valentia.

The Romans called the settlement at what is today Carlisle Luguvalium. This was originally thought to mean "wall[ed town] of Lugus" but has since been explained as a borrowed Brittonic placename reconstructed as *Luguwalion, meaning "[city] of Luguwalos", Luguwalos being a masculine Celtic given name meaning "strength of Lugus". The name apparently continued in use among Brythonic speakers in the Hen Ogledd and Wales and it was during that time that the initial element caer ("fort") was added. The place is mentioned in Welsh sources such as Nennius, who calls it Cair Ligualid, and the Book of Taliesin where it is rendered Caer Liwelyδ (Modern Welsh Caer Liwelydd). (These derived from the original Brittonic name, rather than from its Latin form.) The earliest record of the place in English is as Luel (c. 1050); later medieval forms include Cardeol, Karlioli, and Cærleoil. These appear to suggest that the northern form of the name did not have the final -ydd. (Compare the River Derwent in Cumbria with Derwenydd in Wales, both from Brittonic *Derwentjū.)

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