Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
ARINI
As described in historical dictionaries
Patronymica Britannica (1860)
ARINI. Appears to have been an .ancient personal name. It is found in comjosition with the local surnames, Armfield, Annstead, 2\.rmsby, Armsworth, &c.