/os"tee ak'/ , n. , pl. Ostyaks , (esp. collectively) Ostyak .
Khanty.
Also, Ostiak .
[ 1715-25; ostyák orig. a Khanty, later used for the Samoyedic Selkup, the Ket, and certain Mansi groups as-jax, pl. of as-xo one living on the Ob, equiv. to As the river Ob + xo man ]