Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
DUNNING
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
The brown offspring, from the Saxon Dunn, brown, and the termination ing, which, among the Saxons, signified offspring, as White-ing, the fair offspring, Cuth-ing, the son of Cuth. Dunning has retained its original orthography since the days of the Saxons.
Patronymica Britannica (1860)
DUNNING. Dunning, proprietor of Latham, co. Chester, and ancestor of the family of Lathom, or Latham, of that place, was contemporary with the malving of Domesday Book. Whether he was a continued possessor, of the Saxon race, or a Norman grantee, is, Dr. Ormerod thinks, doubtful. His son was called Siward FitzDuuning. Miscellanea Palatina, p. GO. The contemporary lord of Kiugsley, co. Chester, also bore the personal name of Dunning, as did several other persons in Norman times.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English