Guineaman

From Guinea +‎ man.

Guineaman (plural Guineamen)

1. (now historical) A ship trading with the coast of Guinea; a slave ship.
   • 1789, Olaudah Equiano, chapter 11, in The Interesting Narrative, volume I:

     I went with the Doctor on board a Guinea-man, to purchase some slaves to carry with us, and cultivate a plantation; and I chose them all my own countrymen.