Muskhogean vs Koasati

Muskhogean and Koasati both are nouns.

Word	Noun	Adjective	Verb	Adverb
Muskhogean	Yes	No	No	No
Koasati	Yes	No	No	No

As nouns, Koasati is a hyponym of Muskhogean; that is, Koasati is a word with a more specific, narrower meaning than Muskhogean:

Muskhogean: a family of North American Indian languages spoken in the southeastern United States
Koasati: the Muskhogean language spoken by the Koasati

As nouns, Koasati is a hyponym of Muskhogean; that is, Koasati is a word with a more specific, narrower meaning than Muskhogean:

Muskhogean: a member of any of the peoples formerly living in southeastern United States and speaking Muskhogean languages
Koasati: a member of the Muskhogean people formerly living in northern Alabama; a member of the Creek Confederacy

Other hyponyms of Muskhogean include Alabama, Choctaw, Hitchiti, Muskogee, Seminole.

Muskhogean (noun)	Koasati (noun)
a family of North American Indian languages spoken in the southeastern United States	the Muskhogean language spoken by the Koasati
a member of any of the peoples formerly living in southeastern United States and speaking Muskhogean languages	a member of the Muskhogean people formerly living in northern Alabama; a member of the Creek Confederacy