Proto-IE: *weig-
Meaning: to fall upon, to attack, to move sharply
Old Indian: véga- m. `violent agitation, shock, jerk'
Avestan: vaēg- `(ein Geschoss) schwingen', vaēɣa- m. `Anprall, Schlag, Streich'
Other Iranian: NPers vēxtan `schleudern', angēxtan `antreiben', Osset vēɣun `erschüttern, bewegen', Baluchi gēǰag `schwingen, schleudern'
Russ. meaning: бросаться, нападать, резко двигаться
References: WP I 233 f
Comments: Very probably = *weik-, -g-.
