Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
DIPPERY
As described in historical dictionaries
Patronymica Britannica (1860)
DIPPERY. Fr. Da Pre, 'Of the Meadow.' DTpres — from Ypres in Flanders, has however been suggested to me.