Nile vs Nilotic

Nile and Nilotic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nile	Yes	No	No	No
Nilotic	Yes	Yes	No	No

Nile (noun)	Nilotic (noun)
the world's longest river (4150 miles); flows northward through eastern Africa into the Mediterranean; the Nile River valley in Egypt was the site of the world's first great civilization	a group of languages of East Africa belonging to the Chari-Nile group

Nile (adjective)	Nilotic (adjective)
	of or relating to or constituting the Nilotic group of languages
	of or relating to the Nile River or the people living near it