nefne
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.
nefne
. II. add: II a. without negative, only, nothing but Dó tó drence nǽdran geworhte swá lǽcas cunnon, and þonne hié ǽlcra drincan willen, drincan hié nemne wæter, Lch. ii. 202, 18.
This is a supplementary entry with editorial changes to an entry in the main volume of the dictionary. Look under the 'Possibly connected entries' below, or for the same headword in the list to the left.

A Combined List of Abbreviations.

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A Combined List of Abbreviations.