Ostyak

The story

1. kca-eas · derived from<i class="Cyrl mention" lang="kca-eas">Ас</i> <i class="Cyrl mention" lang="kca-eas">ях</i>“people of the river Ob”
2. Russian · borrowed fromостя́к“Easterner”
3. English todayOstyak

From Russian остя́к (ostják, “Easterner”), from Eastern Khanty Ас ях (As jah, “people of the river Ob”).

First known use, by meaning

• from 17th c. A member of any of several indigenous peoples in Siberia, Russia, including the Khanty people and the Ket people.
• from 19th c. Any of various languages of these peoples.