Afro-americanism
/ˌafrəʊəˈmɛrɪk(ə)nɪz(ə)m/(also Afro-Americanism, Aframericanism)
noun
Afro-American character, culture, or language. Also: something peculiar to or characteristic of this, especially a word, phrase, or mode of expression.
Origin
Late 19th century; earliest use found in The Daily Whig and Courier. From Afro-American + -ism.