Compounder

n.
  1. One who, or that which, compounds or mixes; as, a compounder of medicines.
  2. One who attempts to bring persons or parties to terms of agreement, or to accomplish ends by compromises.
  3. One who compounds a debt, obligation, or crime.
  4. One at a university who pays extraordinary fees for the degree he is to take.
  5. (Eng. Hist.) A Jacobite who favored the restoration of James II, on condition of a general amnesty and of guarantees for the security of the civil and ecclesiastical constitution of the realm.