Assan language

The Assan language (Ассанский язык) was a Yeniseian language spoken to the south of Krasnoyarsk in Russia. It went extinct in the 18th century. It is similar enough to the Kott language that it can be regarded as a dialect of it, but the Assan identified as a separate ethnicity from the Kotts.

It has been difficult to properly classify the Yeniseian languages into a larger family. It is only recently that a possible link to the Na-Dené languages, a family of Indigenous language of the Americas spoken in Alaska, Western Canada and the southwestern United States, was suggested by Heinrich Werner. According to this argument, the Yeniseian and Na-Dené languages form two branches of an ancient family represented on both sides of the Bering Strait: the Dené–Yeniseian languages.

Assan itself was very close to Kott, another extinct Yeniseian language, such that Assan is sometimes represented as a dialect of Kott. However, due to its poor attestation, its status is unclear.