尖頂飾,頂尖
Finial \Fin"*i*al\, n. [L. finire to finish, end. See {Finish}.] (Arch.) The knot or bunch of foliage, or foliated ornament, that forms the upper extremity of a pinnacle in Gothic architecture; sometimes, the pinnacle itself.
finial n : an ornament at the top of a spire or gable; usually a foliated fleur-de-lis