gnagan
This might be just a supplemental entry adding to an entry in the Main Volume.
This might be just an editorial note deleting 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.
gnagan
Dele bracket at end, and add Gnæhð, cíwþ sulcat (corpora vermis ), An. Ox. 23, 49. Wyrmas heora bán gnagað byrnendum tóðum vermes lacerant ignitis dentibus ossa, Wlfst. 139, 10: Dóm. L. 211. Wé hédað þǽra crumena ðæs hláfes and ðá Iúdéiscan gnagað þá rinde, Hml. Th. ii. 114, 34. Sceal se hund bán gnagan, Lch. ii. 48, 12. Gnægen conrosus, Wrt. Voc. ii. 24, 35. Gnagene (gragene, MS.) roderentur (leonum rictibus ), An. Ox. 2, 224. [O. H. Ger. gnagan: Icel. gnaga.]
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.

Abbreviation not recognized. See:

A Combined List of Abbreviations.