Efforts to track mixing between groups led to a proliferation of categories, such as mulatto and octoroon.
From the en.wikipedia.org
Meanwhile, he carried on a relationship with an octoroon slave, Julia Chinn, and gave their two daughters his last name.
From the kentucky.com
In Motley's paintings, he made little distinction between octoroon women and white women, depicting octoroon women with material representations of status and European features.
From the en.wikipedia.org
More examples
An offspring of a quadroon and a white parent; a person who is one-eighth black
Quadroon is a racial category of hypodescent used to describe a person of mixed-race with one-fourth African and three-fourths Caucasian ancestry. In Australia, the same terms refers to the proportion of Aboriginal and Caucasian ancestry.
The Octoroon is a play by Dion Boucicault, which opened in 1859 at The Winter Garden Theatre. Boucicault adapted the play from the novel The Quadroon by Thomas Mayne Reid (1856). It concerns the residents of a Louisiana plantation called Terrebonne. ...