sprott
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.
sprott
AddSprot silurus (cf. silurus a loche, Wülck. Gl. 612, 3), Nap. 14, 39. Hé cwæð hí ealle ne mihton, ne fisceras ne hé sylf, gefón ǽnne sprot, Hml. S. 31, 1271. [v. N. E. D. sprot1 ]
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.