picaninny vs child

picaninny and child both are nouns.

Word	Noun	Adjective	Verb	Adverb
picaninny	Yes	No	No	No
child	Yes	No	No	No

As nouns, child is a hypernym of picaninny; that is, child is a word with a broader meaning than picaninny:

picaninny (noun)	child (noun)
(ethnic slur) offensive term for a Black child	a young person of either sex
	a human offspring (son or daughter) of any age
	an immature childish person
	a member of a clan or tribe