English

Verb

swind ‎(third-person singular simple present swinds, present participle swinding, simple past swand or swinded, past participle swund, swunden or swinded)

1. (obsolete) To languish, waste away, also disappear, vanish.

   As the day dwines, swinds and welks the night darkens, dusks and swerks.‎

   But suddenly his sweet cheer swinded and failed.‎ (a1500(c1400), Saint Erkenwald)

   The good days were all but swunden then.‎

   People come and go, first here, then swunden forever.‎

References

• The Bosworth-Toller Anglo-Saxon Dictionary
• The Middle English Dictionary

Etymology 2

From a variant of swint ‎(“to squint”).

Verb

swind ‎(third-person singular simple present swinds, present participle swinding, simple past and past participle swinded)

1. (Britain, dialectal, Lancashire) To squint