of-drǽd
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.
of-drǽd
of-drǽdd. AddSe þridda cnapa wacode swíðor for ege þonne for his gebedum . . . se ofdrǽdda cnapa eall geseah, Vis. Lfc. 59. Daria cwæð tó þám ofdrǽddan men, Hml. S. 35, 269.
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.