What is "metuje"

The Metuje (; ) is a river in north-eastern Czech Republic. It is long and is a left tributary of the Labe River. The Metuje flows through several towns, including Teplice nad Metují, Náchod and Nové Město nad Metují. The mouth of the Metuje is located in Jaroměř. One of its tributaries called Bystra, comes from Kudowa-Zdrój in Poland.