Толковый словарь английского языка Oxford English Reference - doss

v. & n. Brit. sl. --v.intr. (often foll. by down) sleep, esp. roughly or in cheap lodgings. --n. a bed, esp. in cheap lodgings. Phrases and idioms doss-house a cheap lodging-house, esp. for vagrants. Etymology: prob. = doss ornamental covering for a seat-back etc. f. OF dos ult. f. L dorsum back