Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
MEYRICK
As described in historical dictionaries
Patronymica Britannica (1860)
MEYRICK. A Welsh personal name formerly written Meui'ic, Meirric, or Meurig. It has been variously corrupted to Merrick, Merricks, Merrix, &c.