Definition of "enslaver"

What indignation in her mindAgainst enslavers of mankind!Base kings, and ministers of state,Eternal objects of her hate!

1720, Jonathan Swift, To Stella, visiting me in my sickness

And then came others, possessing weaponry and a sophisticated support before which tribes in dense jungles had no recourse: European concessionaires and feckless traders, brutish exploiters and enslavers.

2009 March 30, Edward Rothstein, “Casting a Sliver of Light on the Heart of Darkness”, in New York Times‎