bolt
This might be just a supplemental entry substituting part of 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.
bolt
Substitute: A bolt, an arrow þǽr is ǽlc treów swá riht swá bolt there is every free as straight as a bolt (cf. bolt-upright), E. S. viii. 477, 13. Speru, boltas catapultas (cf. An. Ox. 4238 (where the same passage is glossed) arewan, gauelucas) Wrt. Voc. ii. 85, 16 : 18, 58.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.