berth
n. countablen. a place where you can sleep, like a bunk in a ship or a dormitory. You use this word when talking about shared sleeping spaces.
n. a fixed sleeping place, typically one of several arranged in a row, found on ships, in barracks, or in hostels.
He climbed into his narrow berth for the night.
The crew members shared a small cabin with two stacked berths.
In the cramped quarters of the submarine, every sailor had to make do with a narrow berth that offered little privacy.
The noun is derived from Late Middle English birth (“(nautical) bearing away or off, clearance, berth”). Further etymology uncertain, but probably from beren (“to carry (away), bear”) + -th (suffix denoting a condition, quality, state of being, etc., forming nouns); if so, the English word is analysable as bear + -th (suffix forming nouns from verbs), and is a piecewise doublet of birth. The verb is derived from the noun.
Possibly borrowed from Icelandic byrði (“side of a ship, board”).