the Roman period; the word caer 'fort' was added later. The Welsh form Caerliwelydd is derived by regular sound changes from the Romano-British name. Glasgow
Carlatton, Cumberland ("Fort of the leek enclosure") Carlisle, Cumberland (Caerliwelydd, "Fort Luguwalos") Carmolt, Cumberland (Caermollt, "Fort of the wether")
later developed into Caer-luel, whence the city's modern Welsh name Caerliwelydd. Rheged came under Northumbrian control before 730, probably by inheritance
Cambridgeshire English Canterbury Caergaint Canterbury English Carlisle Caerliwelydd Carlisle English Catterick Catraeth Catterick English Channel Islands