wicu
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.
wicu
Add: where the reference is to any day but Sunday, week as in week-day Gyf se terminus becymð on ðone Sunnandæg . . . Gyf se terminus gescýt on sumon dæge þǽre wucan, Lch. iii. 244, 17. v. císe-wicu.
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.

Abbreviation not recognized. See:

A Combined List of Abbreviations.