geohhol-dæg
This might be just a supplemental entry adding to an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
geohhol-dæg
Take here Geóhel-dæg (l. geohel-) in Dict., and add Se ǽrysta dæg in natale domini, ðæt is ǽrysta geohheldæg, Shrn. 144, 17. [In ane ȝeoldæie (holy day, 2nd MS.), Laym. 22737. Þe þrittennde daȝȝ fra ȝoldaȝȝ, Orm. 11063. Cf. Icel. jóla-dagr.]
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.

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A Combined List of Abbreviations.