"full, bushy hairstyle worn by some people of African ancestry," 1938, from Afro-. Sometimes shortened to 'fro. As a general adjective for black styles of clothing, music, etc., it is attested from 1966.
Entries linking to afro
Afro-
word-forming element meaning "African," from Latin Afr-, stem of Afer, Afri "African" (noun and adjective; see Africa), or directly from African.