parados
/ˈpærədɒs/noun
- an elevation of earth behind a fortified place as a protection against attack from the rear, especially a mound along the back of a trench（防御工事的）背墙（尤指战壕后的土垛）。
词源
mid 19th cent.: from French, from para- 'protection against' + dos 'back' （from Latin dorsum）.