Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
DAGGETT
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Local) Probably a corruption of Dowgate, a place in London, so called from dow, British, water--the water-gate.
Surname type: Diminutive
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English