The earliest form of English is called Old English or Anglo-Saxon (c. year 550–1066). Old English developed from a set of West Germanic dialects, often grouped as Anglo-Frisian or North Sea Germanic, and originally spoken along the coasts of Frisia, Lower Saxony and southern Jutland by Germanic peoples known to the historical record as the Angles, Saxons, and Jutes. From the 5th century, the Anglo-Saxons settled Britain as the Roman economy and administration collapsed. By the 7th century, the Germanic language of the Anglo-Saxons became dominant in Britain, replacing the languages of Roman Britain (43–409): Common Brittonic, a Celtic language, and Latin, brought to Britain by the Roman occupation. "England" and "English" (originally and ) are named after the Angles.