露宿

to sleep outdoors / to spend the night in the open

surname Lu

to show / to reveal / to betray / to expose

dew / syrup / nectar / outdoors (not under cover) / to show / to reveal / to betray / to expose

old variant of 宿[su4]

surname Su

lodge for the night / old / former

night / classifier for nights

constellation

lit. to eat in the open air and sleep outdoors (idiom) / fig. to rough it