Yeniseian vs Russian

Yeniseian and Russian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Yeniseian	Yes	No	No	No
Russian	Yes	Yes	No	No

As nouns, Russian is a hypernym of Yeniseian; that is, Russian is a word with a broader meaning than Yeniseian:

Yeniseian: a member of one of the groups living in the Yenisei river valley in western Siberia
Russian: a native or inhabitant of Russia

Yeniseian (noun)	Russian (noun)
the Uralic language spoken by the Yeniseian	the Slavic language that is the official language of Russia
a member of one of the groups living in the Yenisei river valley in western Siberia	a native or inhabitant of Russia

Yeniseian (adjective)	Russian (adjective)
	of or pertaining to or characteristic of Russia or its people or culture or language