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Webster 1913 Edition
Wanion
Wan′ion
,Noun.
[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.