Scottish National Dictionary (1700–)
BACK, n.4 (See quot.)
Ork. 1920 J. Firth Reminisc. Ork. Par. (1922) 8–9:
The only division between all these animals and the but-end or kitchen was the “back” — a low, crow-stepped wall about eighteen inches thick, and not more than four or five feet high at the highest point.
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"Back n.4". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 20 Feb 2018 <http://www.dsl.ac.uk/entry/snd/back_n4>
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