the.com/bedroom

means The room in a home set aside for sleeping, typically containing a bed and a door you can shut.

from A transparent English compound, stitched together from 'bed' and 'room' — both ancient, homely Anglo-Saxon words. 'Bed' descends from Old English 'bedd' (a sleeping place, possibly rooted in a sense of something dug or hollowed out, like a garden bed). 'Room' comes from Old English 'rum,' meaning open space or capacity, a cousin of German 'Raum.' The two were welded into 'bedroom' a few centuries ago, when houses grew large enough to dedicate whole rooms to sleep rather than sleeping wherever the fire was warmest.