wē-, Proto-Indo-European root meaning "to blow."
It forms all or part of: Nirvana; vent; ventilate; weather; wind (n.1) "air in motion;" window; wing.
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit va-, Greek aemi-, Gothic waian, Old English wawan, Old High German wajan, German wehen, Old Church Slavonic vejati "to blow;" Sanskrit vatah, Avestan vata-, Hittite huwantis, Latin ventus, Old English wind, German Wind, Gothic winds, Old Church Slavonic vetru, Lithuanian vėjas "wind;" Lithuanian vėtra "tempest, storm;" Old Irish feth "air;" Welsh gwynt, Breton gwent "wind."
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