*rosier*

n. [ OE. rocer, croser, croyser, fr. croce crosier, OF. croce, croche, F. crosse, fr. LL. crocea, crocia, from the same German or Celtic sourse as F. croc hook; akin to E. crook. ] The pastoral staff of a bishop (also of an archbishop, being the symbol of his office as a shepherd of the flock of God. [ 1913 Webster ]

☞ The true shape of the crosier was with a hooked or curved top; the archbishop's staff alone bore a cross instead of a crook, and was of exceptional, not of regular form. Skeat. [ 1913 Webster ]