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
Southern England have a distinct identity from the rest of England, however without universal agreement on what cultural, political, and economic characteristics of the South are. For statistical purposes, Southern England is divided into four regions: South West England, South East England, London, and the East of England. Combined, these have a total area of , and a population of 28 million. People often apply the terms "southern" and "south" loosely, without deeper consideration of the geographical identities of Southern England. This can cause confusion over the depth of affiliation between its areas. As in much of the rest of England, people