Next river in the line is a left bank tributary of the Volga, the Kama. It's his ancient name, Udmurts call it Kam = "river". For added fun it was also called Etil by Turkic people, sometimes differentiate between the two by calling them white river (Kama) and black river (Volga).
And we arrived to a left bank tributary of the Kama, the Belaja = white. It runs through Bashkiria, and they call it Agizel in Turkic, which also means "white river".