The Avestan word snaēžā
Word snaēžā
Meaning snow
See also Proto-Indo-European: *sneigʷh- ‘snow’
Tocharian B: śiñcatstse ‘snow’
Greek: νίφα ‘snow’

Other words that might be of interest
hvarə ‘sun’, huuar- ‘sun’, māh- ‘moon’, asman- ‘stone, sky’, star- ‘star’