Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
DUNK
As described in historical dictionaries
Patronymica Britannica (1860)
DUNK. A Dutcli surname, rather common both here and in America. It is probably an epithet implying dark or obscure. Du. cIo)i7;c)'.
Surname type: From given name or forename
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English