The Proto-Indo-European root is *h₂weh₁- "to blow". In Sanskrit, it became वा vā "to blow". This combined with nis, nir "out, forth, away" to form निर्वाण nirvāṇa "a blowing out, extinction, bliss, nirvana".
The related form *h₂weh₁-t- "blow, inspire, spiritually arouse" became Proto-Germanic *wōđ-enaz one of the chief gods. In Old Norse it was Óðinn, borrowed into English as Odin. The Old English form, Wōden, is found in Wednesday.