arod
This might be just a supplemental entry adding to an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
arod
strenuous, bold. AddArod promptus, Kent. Gl. 821. Efficax hwæt, i. citus, expeditus, astutus, acutus, sollers, peritus arud, Wrt. Voc. ii. 142, 55. Hé bið suíðe arod and suíðe geréðre on ryhtum weorcum constanter se in bono opere dirigit, Past. 306, 15. Arod tó deófles willan, Hml. S. 11, 13. Fús and arod tó þǽre þrowunge ad passionem promta, Gr. D. 231, 10. Beó arod and ne ondrǽd þé nó deáþ, Shrn. 119, 26. Tó ðám arod so bold, Jud. 275. Arude strenua (luctamina ), An. Ox. 5, 1. wíf wæs á siððan þý aredra on hire béne, Shrn. 99, 36.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.