Russian vs aboriginal

Russian and aboriginal both are nouns.

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

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

Other hypernyms of Russian include aborigine, indigen, indigene, native.

Russian (noun)	aboriginal (noun)
the Slavic language that is the official language of Russia	an indigenous person who was born in a particular place
a native or inhabitant of Russia

Russian (adjective)	aboriginal (adjective)
of or pertaining to or characteristic of Russia or its people or culture or language	characteristic of or relating to people inhabiting a region from the beginning
	having existed from the beginning; in an earliest or original stage or state