n. An emancipator from slavery, someone who manumits.
The Century Dictionary and Cyclopedia
n. One who manumits or frees; an emancipator.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. someone who frees others from bondage
Word Usage
"Consequently, we understand a gift of liberty to be avoided only when the creditors are defrauded both by the intention of the manumitter, and in fact: that is to say, by his property being insufficient to meet their claims."