æf-weardness
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.
æf-weardness
AddHí ofer ðæt swá dón noldon in ðæs fæder æfweardnysse, be ðám hí ongǽton ðæt hé him symble wæs ondweard on his gáste, Gr. D. 127, 25. On heora hláfordes æfweardnysse, 29, 2.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.