Complex sentence: Prof George Vernadsky has suggested that the name derives from the Roxolani or from the Aryan term "ronsa" (moisture, water), the recurrence of river names like Ros in Eastern Europe.
Split into simpler sentences: Prof George Vernadsky has suggested that the name derives from the Roxolani or from the Aryan term "ronsa" (moisture, water). There is a recurrence of river names like Ros in Eastern Europe.