sabretache
/ˈsæbətæʃ/noun
- historical a flat satchel on long straps worn by some cavalry and horse artillery officers from the left of the waist-belt〈史〉马刀挂套（某些骑兵及骑炮部队官兵悬挂在腰带左侧的扁平皮套）。
词源
early 19th cent.: from French, from German Säbeltasche, from Säbel 'sabre' + Tasche 'pocket'.