The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
wet-1
DEFINITION:
To blow, inspire, spiritually arouse. Related to w-. Oldest form *2wet-. Derivatives include Wednesday and atmosphere. 1. Lengthened-grade form *wt-.a.Woden; Wednesday, from Old English Wden, Woden; b.Odin, from Old Norse dhinn, Odin; c.Wotan, from Old High German Wuotan.ac all from Germanic suffixed form *wd-eno-,*wd-ono-, raging, mad, inspired, hence spirit, name of the chief Teutonic god *Wd-enaz;d.wood2, from Old English wd, mad, insane, from Germanic *wdaz;e. Celtic *wt-.vatic, from Latin vts, prophet, poet, from a Celtic source akin to Old Irish fáith, seer. 2. O-grade form *wot-.wedeln, from Old High German wedil, fan, from Germanic suffixed form *wath-ila-.3. Suffixed variant form *wat-no-.fan1, van3, from Latin vannus, a winnowing fan. 4. Oldest basic form *wet- becoming *awet- in suffixed form *awet-mo-.atmosphere, from Greek atmos (< *aetmos), breath, vapor. (Pokorny 1. t- 1113.)