from The American Heritage® Dictionary of the English Language, 4th Edition
- A river of eastern Europe rising in southwest Ukraine and flowing about 772 km (480 mi) through Poland to the Vistula River near Warsaw.
- A river of southern Ukraine rising in the southwest part and flowing about 853 km (530 mi) generally southeast to the Black Sea.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. the Bug River, flowing northwest 450 mi. between Belarus and Poland.
- proper n. the Bug River in the Ukraine, flowing 530 mi. to the Dnieper estuary.
Sorry, no etymologies found.