bócere
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.
bócere
Add:I. a bookman, an author, a scholar Nán bócere ne mæg, þeáh hé mycel cunne, heora naman áwrítan, Hml. S. p. 6, 67. Ðus Béda ðe bróema bóecere cuæð, Jn. 19, 37 margin. andgitt From boecerum a librariis , Mt. p. 2, 2. II. a (Jewish) scribe Ðá boecere scribae , Mk. p. 5, 3. Hé manige searwa ádreág æt þám unlǽdum bócerum, Bl. H. 85, 1. Mið boecerum (bókerum, R.) cum scribis , Mt. L. 27, 41. [Goth. bókareis: O. L. Ger. bókari: O. H. Ger. buohhári.]
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.