bothy
A small cottage or hut; specifically (Scotland), one often left unlocked for communal use in a remote, often mountainous, area by hikers, labourers, etc.
Angus painted in the most alarming colours the roads, or rather wild tracts, by which it would be necessary for him to travel into Argyleshire, and the wretched huts or bathies where he would be condemned to pass the night, and where no forage could be procured for the horse, unless he could eat the stumps of old heather.
A building for workers to rest in.
A building on a farm, sometimes with just one room, for (usually unmarried male) farmworkers or other labourers to live in.
historical
Where it comes from
Probably from booth + -y (diminutive suffix). Booth is ultimately derived from Proto-Germanic *bōþō (“building; dwelling; hut”), from *būaną (“to dwell, reside”), possibly from Proto-Indo-European *bʰuH- (“to be”). The short vowel /ɒ/, /ɑ/, etc., in the first syllable instead of the long vowel /uː/ in booth may be due to the influence of Irish both and Scottish Gaelic both (“booth, hut”), which have the same etymology as booth.
Adapted from the Wiktionary entry bothy (CC BY-SA 4.0).