Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
DERING
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Saxon.) From Dearran or Darran, to dare, bold, daring; a name given to an old Saxon chieftain.
Patronymica Britannica (1860)
DERING. The source of this ancient family, (whence the affix of SurendenDering, co. Kent.) appears to be from that of De Morinis, who probably originated in the territory of the IMorini in the N.E. of France. One of the early members, De
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.