Ubykh is an extinct Northwest Caucasian language once spoken by the Ubykh people, an ethnic group of Circassian nation who originally inhabited the eastern coast of the Black Sea before being deported en masse to the Ottoman Empire during the Circassian genocide.
The Ubykh language is ergative and polysynthetic, with a high degree of agglutination, with polypersonal verbal agreement and a very large number of distinct consonants but only two phonemically distinct vowels. With around eighty consonants, it has one of the largest inventories of consonants in the world, and the largest number for any language without clicks.