berm

1. A narrow ledge or shelf, as along the top or bottom of a slope
2. A raised bank or path, especially the bank of a canal opposite the towpath
3. A terrace formed by wave action along a beach
4. A mound or bank of earth, used especially as a barrier or to provide insulation
5. A ledge between the parapet and the moat in a fortification
6. (Indiana) A strip of land between a street and sidewalk

verb

To provide something with a berm