Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
III
As described in historical dictionaries
Patronymica Britannica (1860)
III. the name is found thus modified : Fitz Benedict, Bcnediscite, Bendiste, Bendish, Bennett. Tliis was in the city of Noi--ich. N. and Q. v. 291. The derivation from hend, a minor order of priests, is improbable.