dem
This might be just a supplemental entry adding to an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
dem
AddHýnð vel lyre vel hearm vel demm dispendium vel damnum vel detrimentum, Wrt. Voc. i. 47, 29. (v. Angl. viii. 451.) For þý dæmme (demme, v. l.) þæs wáges fylles damno parietis, Gr. D. 125, 11. Þone wól (dem, v. l.) þínre gedréfednesse perturbationum morbum, Bt. 5, 3; F. 12, 17.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.