blód-seax
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.
blód-seax
AddBlódsaex flebotoma, Wrt. Voc. ii. 108, 77. Blódseax flebotomum, Graece namque fleps, vena, tomum vero incisio nominatur, 39, 22: fletoma, 33, 73. Blódsex flebotomum, 149, 42, Sé án blódseax (lǽceíren, v. l. ) ásette on míne tungan, Gr. D. 32, 24. Se ealda feónd sittende on ánum múle on lǽces ansýne bær horn and blódsex (blódaexe, v. l. ), 161, 2. [O. L. Ger. blód-sahs (-sax).]
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.