CROSIER

A bishop's staff, with a cross on the top in the form of a crutch or T. A sign over a shop.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.

CROSIER. A crosier is a bishop's staff, fashioned like a shepherd's crook, symbolical of his spiritual pastorate — but this is an unlikely origin for the name, which is more probably dei'ived fi'om the old Fr. croiseur, one who stamps or marks anything with a cross, or perhaps from croise, one who has designated himself with the Christian symbol — a Crusader.

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