Related to surbased: surbased arch
Having a surbase.
Of or being an arch having a rise less than half its span.
[From French surbaissé, past participle of surbaisser, to flatten : sur-, intensive pref. (from Old French; see sur-) + baisser, to lower (from Old French baissier, from Vulgar Latin *bassiāre; see abase).]
1. (Architecture) having a surbase
2. (Architecture) (of an arch) having a rise of less than half the span
[C18: from French surbaisser to depress, from sur- (intensive) + baisser to lower, from bas low; see base1]