beorcan
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.
beorcan
AddBeorceð latrat, Wrt. Voc. ii. 95, 83: 52, 68. Beorcan latrare, Fast. 89, 17. Beorcende fox, Shrn. 141, 12. Hundas beorcynde, Lch. iii. 200, 25. ¶ beorcan on to bark at :-- Clypa ongén þissum deófles hunde þe þé on beorceþ, Shrn. 56, 32. Se wrítere sǽde sum hund burce hetelice on ánne man, Hml. S. 31, 1132.
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.