Another word from the Civil Engineering dictionary:

Chemise: a wall which revets an earth bank; i.e.: a wall that protects an earth bank against weathering, without acting to retain or strengthen.

We usually think of a chemise as a shirt or blouse. The American Heritage Dictionary gives its source as Central Semitic, to enclose, and presumably that is the connection with the wall.

“Chemise from Late Greek kamision, probably from a Semitic source akin to Ugaritic qm , a garment, Arabic qam , shirt, both akin to Hebrew q ma , to enclose with the hand, grasp.”