[1] : The Collaborative International Dictionary of English v.0.48

wanion \wan"ion\, n. probably for oe. waniand waning, p. pr. of
   wanien; hence, used of the waning of the moon, supposed to be
   an unlucky time. see wane.
   a word of uncertain signification, used only in the phrase
   with a wanion, apparently equivalent to with a vengeance,
   with a plague, or with misfortune. obs. --b. jonson.
   latimer.
   1913 webster
see also:
wane 

Wanion >> W Words
Wanion, definition of term: Wanion
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