A person of mixed European and African descent; (sometimes) specifically a person with one white-skinned parent and the other one-quarter black. Also more generally: a person of mixed racial descent.
mustee/mʌˈstiː/ /mʌsˈtiː/ /ˈmʌstiː/
Late 17th century. Shortened from mestizo, perhaps arising by mistaken analysis of such plural forms as musteeses.