a mulatto is the offspring of a white man by a negress; a quadroon is the offspring of a white man and a mulatto mother; the child of a quadroon by a white man is amustee; the child of a white man by a mustee woman is a mustiphini;
1836, American Anti-Slavery Society,The Anti-Slavery Examiner, Omnibus[1]:
Near the commencement of the weeding season of 1835, I was ordered to whip a young woman, a lightmustee, for not performing her task.