Scottish National Dictionary (1700–)
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First published 1952 (SND Vol. III).
This entry has not been updated since then but may contain minor corrections and revisions.
DAAL, Dal(l), n. Sh. forms of Eng. dale, a valley (Sh. 1866 Edm. Gl., dall; 1908 Jak. (1928), dal; 1914 Angus Gl.).
Hence da(a)lamist, mist which gathers in valleys or on low-lying water, gen. appearing at night and disappearing when the sun rises (Sh. 1908 Jak. (1928), dalamist; 1914 Angus Gl., daalamist).[Norw. dal, dale, valley; O.N. dalr, idem.]
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"Daal n.". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 9 Dec 2023 <http://www.dsl.ac.uk/entry/snd/daal>