regol
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.
regol
Add:IV. a ruler for drawing lines, v. regolian. V. a tabular arrangement, list given in tabular form Ðá talo ł reglas ðá Eusebius in ténum talum geendebrednade canones quos Eusebius in decem numeros ordinavit, Mt. p. 2, 18. Regulas, 3, 9. v. preóst-regol.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.