Proto-IE: *wreg-
Meaning: to drive
Tokharian: A wark, B werke (PT *werke) 'chase, hunt, hunting' (Adams 609)
Old Indian: vrájati `to go, walk, wander, move'
Latin: urgeō, -ēre, ursī `drängen, bedrängen, pressen'
Russ. meaning: гнать(ся)
References: WP I 319 f