The Collaborative International Dictionary of English v.0.48:
Remitter \Re*mit"ter\ (-t?r), n.
1. One who remits. Specifically:
(a) One who pardons.
(b) One who makes remittance.
2. (Law) The sending or placing back of a person to a title
or right he had before; the restitution of one who obtains
possession of property under a defective title, to his
rights under some valid title by virtue of which he might
legally have entered into possession only by suit.