Etymology
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bed (n.)

Old English bedd "bed, couch, resting place; garden plot," from Proto-Germanic *badja- (source also of Old Frisian, Old Saxon bed, Middle Dutch bedde, Old Norse beðr, Old High German betti, German Bett, Gothic badi "bed"). This is said to mean perhaps "sleeping place dug in the ground," if it is from PIE root *bhedh- "to dig, pierce" (source also of Hittite beda- "to pierce, prick," Greek bothyros "pit," Latin fossa "ditch," Lithuanian bedu, besti "to dig," Breton bez "grave"). But Boutkan doubts this and finds little reason to assume that Germanic peoples "(still) lived under such primitive circumstances that they dug out their places to sleep."

Both the sleeping and gardening senses are found in Old English; the specific application to planting also is found also in Middle High German and is the only sense of Danish bed. The meaning "bottom of a lake, sea, or watercourse" is from 1580s. The geological sense of "a thick layer, stratum" is from 1680s.

Bed and board "in bed and at the table" (early 13c.) was a term in old law applied to conjugal duties of man and wife; it also could mean "meals and lodging, room and board" (mid-15c.). Bed-and-breakfast in reference to overnight accommodations is from 1838; as a noun, in reference to a place offering such, by 1967.

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bed (v.)

Old English beddian "to provide with a bed or lodgings," from bed (n.). From c. 1300 as "to go to bed," also "to copulate with, to go to bed with;" 1440 as "to lay out (land) in plots or beds." Related: Bedded; bedding.

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feather-bed (n.)

Old English feþerbedd; see feather (n.) + bed (n.).

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death-bed (n.)

also deathbed, Old English, "the grave," from death (n.) + bed (n.). Meaning "bed on which someone dies" is from c. 1300.

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slug-a-bed (n.)

also slugabed, 1590s, with bed (n.) + obsolete verb slug "be lazy, intert" (early 15c.), which is perhaps from Scandinavian (see sluggard).

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bed-wetting (n.)

"involuntary urination while sleeping," 1844, from bed (n.) + present participle of wet (v.). Related: Bed-wetter.

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bed-clothes (n.)

also bedclothes, "coverings used on beds, such as sheets, blankets, quilts, etc.," late 14c., from bed (n.) + clothes. Old English had beddclað.

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bed-board (n.)

also bedboard, "head- or foot-board of a bed," early 15c., from bed (n.) + board (n.1).

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bed-rest (n.)

by 1836 as "device for sitting up in bed;" by 1896 as "a resting in bed for recovery from injury or illness;" from bed (n.) + rest (n.).

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bed-roll (n.)

"bedding rolled up in a bundle," 1905, from bed (n.) + roll (n.). There is a citation of an identical word from 1650s in the sense "a list of women for sleeping with."

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