Scottish National Dictionary (1700–)
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First published 1956 (SND Vol. IV).
This entry has not been updated since then but may contain minor corrections and revisions.
GRUMP, v. To crunch any hard or dry substance with the teeth (Cai. 1905 E.D.D. Suppl.). Also in Eng.
[Variant form of Crump, v., 1., idem.]
