nædre
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.
nædre
l. nǽdre, and add Cóm of ðǽm wætre án nǽdre, seó wæs ungemetlíce micel (serpens mirae magnitudinis ), and þá men ealle ofslóg þe néh ðǽm wætre cóman, Ors. 4, 6; S. 174, 4. Sió nǽdre . . . lǽrde Euan on wóh. Ðá wæs Adam . . . ðurh gespan ðǽre nǽddran . . . oferswíðed, Past. 417, 26-29. 'Beó gé swá ware suá suá nǽdran . . . For ðǽm . . . sceal ðǽre nǽdran lytignes . . . ðǽre culfran biliwitnesse gescirpan, 237, 20-23. Nédra (nédre, R.) serpentem , Lk. L. 11, 11.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.