Pripyat River
The Dregoviches or Dregovichi (Belarusian: дрыгавічы, "dryhavičy", ; ; ) were one of the tribal unions of Early East Slavs, and inhabited the territories down the stream of the Pripyat River and northern parts of the right bank of the Dnieper river (more exact extents of the tribe's domain are still unknown). The name of the tribe probably derives from the Old Ruthenian word дрегва or дрягва ("drehva", or "dryahva", which means "swamp") because the Dregoviches used to live in the marshlands.