Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
ODY
As described in historical dictionaries
Patronymica Britannica (1860)
ODY. Tlie classical Otlio, in its changed form of Odo, was a Norman personal name. It was afterwards corrupted to Ody, and in course of time became hereditary.