ufor
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.
ufor
; II. AddÐætte hié swá micle swíðor ðone spild ðæs hryres him ondrǽden ðonne ða óðre, swá hí ufor stondað ðonne ðá óðre ut tanto sollicitius praecipitem ruinam metuant, quanto altius stant, Past. 407, 21. v. uferor, yfemest.
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.