Isca Dumnoniorum but seems to have gone into decline prior to the Roman withdrawal from Britain . The name "Isca Dumnoniorum" is a Latinization of a native Brittonic name describing flowing water, in reference to the River Exe. More exactly, the name seems to have originally meant "full of fish" (cf. Welsh "pysg", "fish"), although it came to be a simple synonym for water (cf. Scottish whiskey). This is also reflected in the modern Welsh name for Exeter: "Caerwysg" meaning "fortified settlement on the river Uisc". The same name was used for the River Usk (modern ) in southern Wales, causing the
History of Torquay town, where people would often meet. Given its size, the quality of its construction and the lack of development in this area of Torquay until the nineteenth century, it is possible these were the remains of a Roman road, as local historians J.T White and Percy Russell have suggested, although no further excavations have taken place due to the site being under Torbay Road. The existence of a Roman road leading out of Isca Dumnoniorum and towards Western Devon crossing the River Teign at Teignbridge some 14 miles north of Torquay also suggests this road could have been part of