What happened to the Yotvingian language?

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Baltic languages The Baltic states: Estonia, Latvia, and Lithuania.

The Yotvingian language, also known as Suduvian, was a Baltic language that became extinct between the 16th and 17th centuries.1

The Yotvingians, who inhabited regions of southwest Lithuania and parts of present-day Poland, were linguistically closely related to the Prussians and classified as Western Balts. As their population was assimilated by Lithuanians in the north and Slavs in the south, the language gradually disappeared. Because the Yotvingians left no written records, information regarding their language is extremely scarce and is primarily limited to place-names.1