 From the mid-13th century it was described as a manor, but by the end of the 18th century it was "an obliterated place".The place name derives from "Sock", probably an area of marsh or streams, and the family name of the successors of William the Dane, a 12th-century owner.The family of Dennis was apparently of Danish origin, and was recorded in early Norman charters in French as "le Deneys", meaning "The Dane", which was frequently Latinised by scribes as "Dacus", being the adjectival form of "Dacia", the mediaeval Latin for Denmark, thus "Danish".