What is origin of the word Bosnia?

The name Bosnia is of Slavic origin. It is believed to be derived from the Slavic root "bosna", which means "river". The name was first recorded in the 10th century, when the area was inhabited by Slavic tribes. The name Bosnia was later used to refer to the medieval Bosnian state, which existed from the 12th to the 15th century. The name was also used to refer to the Ottoman province of Bosnia, which existed from the 15th to the 19th century. The name Bosnia is still used today to refer to the modern country of Bosnia and Herzegovina.