Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
SELBY
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Local) A market-town in west Yorkshire, England, on the Ouse. Danish, Seile, to sail, to navigate, and by, a town. Seil, a sail. A place of boats or sails.
Patronymica Britannica (1860)
SELBY. A town in Yorkshire, and a township in Northumberland. Riddleston, in the latter county, was granted in 1272, by King Edward I., to Sir Walter de Selby, and it has ever since remained in the possession of his descendants, Shirley's Noble and Gentle Men,
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English