Dumnonii the origin of the interpretation of Dumnonii as "deep valley dwellers" from his understanding of the Welsh of his time. John Rhys later theorized that the tribal name was derived from the name of a goddess, "Domnu", probably meaning "the goddess of the deep". The proto-Celtic root *dubno- or *dumno- meaning "the deep" or "the earth" (or alternatively meaning "dark" or "gloomy") appears in personal names such as Dumnorix and Dubnovellaunus. Another group with a similar name but with no known links were the Fir Domnann of Connacht. The Roman name of the town of Exeter, "Isca Dumnoniorum" ("Isca of
Southern England as with most geographical regions, people sometimes debate the boundaries. In the west, Southern England is generally taken to include Gloucestershire and Oxfordshire; in central Southern England, the counties of Bedfordshire, Buckinghamshire and Hertfordshire; to the east, Essex and the counties of East Anglia (Cambridgeshire, Norfolk and Suffolk). Despite these definitions, the northern boundary is generally taken to correspond to an imaginary line from the Severn Estuary to the Wash (or expressed in terms of towns, from Gloucester to King's Lynn). Southern England Southern England, or the South of England, also known as the South, refers roughly to the southern