The Tocharian B word śāw-
Word śāw-
ɕ a w
IPA ɕaw
Meaning live

Comments
Douglas Q. Adams, “Etymological Dictionary of Tocharian B”, 1999, Brill

Other words that might be of interest
śāmñe ‘human, mortal’, amārraṣṣe ‘immortal’, oṅkrotte ‘immortal’, onuwaññe ‘immortality’, śaul ‘life’