rysc
This might be just a supplemental entry adding to an entry in the Main Volume.
This might be just an editorial note deleting an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
rysc
[Perhaps risc is the better form. v. N. E. D. rush.] Dele 'From Latin ruscus', and add Grównes ricsena (rixa, v. l.), Bd. 3, 23; Sch. 300, 20. The word occurs as the first part of many local names.
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.