Surbase

n.	1.	(Arch.) A cornice, or series of moldings, on the top of the base of a pedestal, podium, etc. See Illust. of Column.
	2.	A board or group of moldings running round a room on a level with the tops of the chair backs.

Noun

1.

surbase - the molding or border above the base of a structure (a pedestal or podium or wall)

molding, moulding