fnæd
This might be just a supplemental entry adding to an entry in the Main Volume.
Related §§ in Wright's OE Grammar:
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
fnæd
AddÞone munuc sum sweart cniht teáh út be þám fnæde his hrægles (per vestimenii fimbriam), Gr. D. in, 28: Hml. Th. ii. 160, 23. Heó hrepode his reáfes fnædu, 394, 12. Fnæda, Hml. 8, 31, 570. Sume heora fnada (fimbrias ] gemiccliaþ, R. Ben. 135, 26. v. ge-fnæd.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.