á-gán
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.
á-gán
Add: II b. to pass into possession (of inherited property) Hit eall ágán is þǽron oð on (on þǽron oð, MS.) þíne hand all therein has passed until it has come into your possession, Cht. Th. 486, 33.
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.