assientos

They listened always very attentively to my discourses on these heads, but especially to that part which related to the buying of negroes, which was a trade at that time, not only not far entered into, but, as far as it was, had been carried on by assientos, or permission of the kings of Spain and Portugal, and engrossed in the public stock: so that few negroes were bought, and these excessively dear.

Robinson Crusoe 1719

They listened always very attentively to my discourses on these heads, but especially to that part which related to the buying Negroes; which was a trade, at that time, not only not far entered into, but, as far as it was, had been carried on by the assientos, or permission of the kings of Spain and Portugal, and engrossed from the public; so that few

The Life and Adventures of Robinson Crusoe of York, Mariner, Volume 1 With an Account of His Travels Round Three Parts of the Globe, Written By Himself, in Two Volumes Daniel Defoe 1696