† ribbisn.
Obsolete. rare.
Apparently: a type of toothed iron plate used in cloth-making.
ΚΠ
1688 R. Holme Acad. Armory iii. 348/1 The Ribbis is a piece of Plate Iron, cut with Teeth like a Saw; with it the Cloth Worker lays the Wool of the Cloth by drawing it over the same.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online June 2018).
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n.1688