Scottish National Dictionary (1700–)
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First published 1965 (SND Vol. VI).
This entry has not been updated since then but may contain minor corrections and revisions.
NIZZ, v. To thresh a sheaf roughly by knocking the ears of corn off, gen. in order to get the straw (Ork. 1929 Marw., Ork. 1964).
[Norw. knys(j)a, to beat, pound.]
