As described in historical dictionaries

Patronymica Britannica (1860)

PINCH. PINCHES. PINCHIN. This group probably have their origin in some ancient personal name.

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.


BritishSurnames.uk is a Good Stuff website.