surbased
adjective
sur·based
-st
1
: having the curve center below the springing line of imposts
surbased arch
surbased vault
2
: having a surbase
Word History
Etymology
French surbaissé depressed, flattened, surbased (from past participle of surbaisser to lower from above, depress, flatten, from sur- + baisser to lower, from bas low, from Middle French) + English -ed