Berme

also, berme. fortification. a horizontal surface between the exterior slope of a rampart and the moat.
also called bench. any level strip of ground at the summit or sides, or along the base, of a slope.
also called backsh-r-, beach berm. a nearly flat back portion of a beach, formed of material deposited by the action of the waves.
chiefly indiana, ohio, pennsylvania, and west virginia. the bank of a c-n-l or the shoulder of a road.
chiefly alaska. a mound of snow or dirt, as formed when clearing land.
a bank of earth placed against an exterior wall or walls of a house or other building as protection against extremes of temperature.
to cover or protect with a berm:
the side walls were bermed to a height of three feet.
historical examples

the continental monthly, vol. 6, no 2, august, 1864 various
monk julian corbett

noun
a narrow path or ledge at the edge of a slope, road, or c-n-l
(nz) the gr-ss verge of a suburban street, usually kept mown
(fortifications) a narrow path or ledge between a moat and a rampart
(military) a man-made ridge of sand, designed as an obstacle to tanks, which, in crossing it, have to expose their vulnerable underparts
n.
berm
(bûrm)