á-cwincan
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.
á-cwincan
Add:1. of fire (lit. or fig.) Ðá candela ácwuncon, Hml. S. 35, 314. Ácwunce delitesceret (scintilla ), Angl. xiii. 365, 9. Ðæt leóhtfæt sceolde ácwyncan, Hml. S. 23, 810. 2. of other things Ic ácwince fatesco, Hpt. Gl. 501, 21. Ácwincað fatescunt, i. deficiunt (blandimenta ), An. Ox. 2384. Ácwanc fatescit (caligo ), 3298. Á-cwi(n)cende fatescens (umbra ), 4065.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.