þreál
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.
þreál
. I. AddNe áteóra þú for Drihtnes þreále (cf. deficias cum ab Domino corriperis, Prov. 3, ii), Hml. S. 33, 217. II. AddHé gehét him Godes yrre and yfele þreála, Hml. S. 31, 803.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.