heorra
This might be just a supplemental entry substituting part of an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
heorra
Substitute: heorre, hearre, hyrre, an; f. I. glossing cardo Hic cardo þeós heorre (heorr, v.l.), Ælfc. Gr. Z. 37, 9. Heorre (hearre, v.l.) cardo, 317, 2. II. a hinge; the bar which forms part of a hinge Swé forhwerfed bið on hiore hyrran sicut (ostium) vertitur in cardine suo, Kent. Gl. 991. Hé gestrangode heorran ł scyttelsas gata þínra confortauit seras portarum tuarum, Ps. L. 147, 13. III. a cardinal point: — Hearran cardines orbis terrae, Kent. Gl. 268. See preceding word.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.