Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
FINER
As described in historical dictionaries
Patronymica Britannica (1860)
FINER. A>efiner of metals. "Fyners," with this meaning, are mentioned in the old poem called Cocke Lorelle's Bote.
Religion of origin: Jewish
Language of origin: Hebrew