wiþer-weard
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.
wiþer-weard
. II. AddHié wurdon him selfum wiðerwearde þęt hié hit ǽfre ongunnon, and Scribanianus ofslógon they became opposed to themselves, that they had ever attempted it, and slew Scribonianus ; exercitus conversus in poenitentiam, Scribonianum interfecit, Ors. 6, 4; S. 260, 3.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.