stille
This might be just a supplemental entry adding to an entry in the Main Volume.
Related §§ in Wright's OE Grammar:
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
stille
I. 1 a. fig. AddSege ús nú sóðe búton ǽlcon leáse, and wé nellað þé ámeldian, ac hit eall stille lǽtan, Hml. S. 23, 591. I. 2 b. AddOn þǽre nihte, þá hit stillost wæs, Gr. D. 238, 11. II. AddÞú þe ealle ðá unstillan gesceafta tó þínum willan ástyrast, and ðú self stille and unáwendedlic þurhwunast, Bt. 33, 4; F. 128, 10.
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.