belt
This might be just a supplemental entry substituting part of an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
belt
Substitute Belt baltheus, i. cingulum, An. Ox. 486. Gyrdel oððe belt baltheum, Wrt. Voc. ii. II, 51: baltheum, cingulum, 125, 15. Helmstán þá undǽde gedyde þæt hé Æðerédes belt forstæl, Cht. Th. 169, 20.
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.