geár-dagas
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.
geár-dagas
Add:I. days, lifetime Heora geárdagum in their days, Gen. 1657, II. days of yore Án wæs on geárdagum Gode wel gecwéme, Isaias se wítega, Wlfst. 44, 21. Hit gewearð on geárdagum þæt God sylf spæc of Synai munte, 66, 9.
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.