GNU Collaborative International Dictionary of English

Found one definition

1.       
   Crosier , 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