Surbased
Pronunciation : Sur"based`, a. (Arch.) (a) Having a surbase
Part of Speech : or
Etymology : [F. surbaiss?.]
Definition : Defn: Having the vertical height from springing line to crown less than the half span; -- said of an arch; as, a segmental arch is surbased.
molding above the base. (b)
Source : Webster's Unabridged Dictionary, 1913