A Dictionary of the Older Scottish Tongue (up to 1700)
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First published 1990 (DOST Vol. VII).
This entry has not been updated since then but may contain minor corrections and revisions.
Quotation dates: 1633, 1687-1688
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Roust, n.3 (ON rǫst (Norw. røst). Also in the later dial. of Orkney and Shetl. as roust, roost ‘a turbulent stretch of sea caused by a strong current in a restricted passage or by a meeting of conflicting currents, specif. in the seas between Sh. and Ork.’ (SND, s.v. Roust n.).) — 1633 (1711) Sibbald's Orkn. & Shetl. 15.
The rousts and high tidegates of the sea about the promontories and the isles, make the weather often rough 1633 (1711) Ib. 33.
Roust is a tempestuous tyde a1688 An Explication of some Norish Words used in Orkney and Zetland in a1688 Wallace Orkney 110.
Roust, a very tempestuous tide
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"Roust n.3". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 14 Dec 2025 <http://www.dsl.ac.uk/entry/dost/roust_n_3>
