Proto-IE: *wen(w)-
Meaning: to work, to battle, to win
Old Indian: vanóti `to win, gain', vanáti `to conquer, hurt, injure'
Avestan: vanaiti, vanaoiti `siegt'
Other Iranian: MPers vanītan `besiegen, schlagen'
Russ. meaning: трудиться, биться, побеждать
References: WP I 258 f