hyll
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.
hyll
AddHyl oððe beorh collis, Wrt. Voc. i. 80, 43. On ðá rúgan hylle, C. D. iii. 454, 1. Dena ł hylla colles . Ps. L. 113, 4. [The word occurs as the second element of many local names, v. Midd. Flur.] v. ǽmett-hyll, ciric-hyll, eág-hyll.
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.