for-dwínan
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.
for-dwínan
AddIc fordwíne evanesco, i. evaneo, Wrt. Voc. ii. 144, 27. Fordwínþ fatescit, i. evanescit, lacessit, 147, 23. I. to vanish, pass from sight Fordwán disparuit, Hpt. Gl. 502, 1. Fǽrlíce fordwán se ælðeódiga of his gesihðum, Hml. Th. ii. 286, 22. Hé ðǽrrihte of hyra gesihðum fordwán, i. 452, 15: Hml. S. 6, 315. Se deófol þǽrrihte fordwán on his gesihðe the devil straightway vanished while he was looking at him, 31, 178. Þa hundas ðǽrrihte of heora gesihðe fordwinon, Hml. Th. i. 378, 1. I a. to pass from knowledge, become unknown :-- Bemiþe, fordwine delitesceret, i. diu lateret, An. Ox. 2089. Fordwínan delitescere, i. latere, 2152. II. to fade away, dwindle away, pass away, come to an end, decay Gif se salt forduínde ł forduíneð si sal euanuerit. Lk. L. 14, 34. Þæs folces duguð fordwíneð, Wlfst. 133, 12. Fordwán cassaretur, An. Ox. 4711. Fordwinantabuerunt, 4032: euanuerunt, i. defecerunt, 1679. Swylce sceadu gewitan, swylce swefen fordwinan (euanuerunt ), Scint. 215, 11. Fordwínan euanescere, i. deficere, An. Ox. 3272. [v. N. E. D. fordwine.]
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.