á-fandung
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.
á-fandung
-fandigung. Add:I. trial, probation Seó gedréfednys wyrcð geðyld, and þæt geðyld áfandunge (probationem , v. Scint. 7, 19),, Seó áfandung eówres geleáfan, Hml. Th. i. 554, 25-31. Áfandung temptatio , Scint. 211, 17. II. trial, experiment, experience Áfandgung (printed -fangdung) experientia , Wülck, Gl. 249,4. Þurh cunnunge and áfandunge witan per experimentum scire , Gr. D. 261, l, 19.
This is a supplementary entry with editorial changes to an entry in the main volume of the dictionary. Look under the 'Possibly connected entries' below, or for the same headword in the list to the left.

A Combined List of Abbreviations.

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A Combined List of Abbreviations.