Definition of "mustee"

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 a mustee; the child of a white man by a mustee woman is a mustiphini;

1833 Frederic William Naylor Bayley Four Years' Residence in the West Indies p. 493

Near the commencement of the weeding season of 1835, I was ordered to whip a young woman, a light mustee, for not performing her task.

1836, American Anti-Slavery Society, The Anti-Slavery Examiner, Omnibus‎