Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
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As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Dan.) A fleet hound, a name given for swiftness or love of hunting.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English