Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
MARRIOTT
As described in historical dictionaries
Patronymica Britannica (1860)
MARRIOTT. A family tradition derives it from a town of the same name in Normandy ; but no place in that province approaching the sound or orthography is to be found. The name is, however, unquestionably French, and probably one of the many derivatiā es of the female name Mary. Mariette and Mariotte are still found as surnames in Normandy. See De Gerville, in Mem. Soc. Ant. Norm, for 1844. See also Mariott.
Surname type: Diminutive
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English