Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
BECKETT
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Local) A little brook. (By no means appropriate to the furious St. Thomas of Canterbury!
Patronymica Britannica (1860)
BECKET. BECKETT. See A'Beckett. There is a tything in co. Berks so called.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Surname type: Diminutive
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English