compounder

noun

1. A person who compounds (mixes ingredients, and tests the result)

   “a compounder of medicines”

2. One who attempts to bring persons or parties to terms of agreement, or to accomplish ends by compromises.

   “Compounders in politics.”

3. One who compounds a debt, obligation, or crime.

   “Religious houses made compounders / For the horrid actions of their founders.”

4. (UK, archaic)One at a university who pays extraordinary fees for the degree he is to take.

   “1691–92, Anthony Wood (antiquary), Athenæ Oxonienses The first of these two was a compounder, the other who was an accumulator, was lately made provost of Trin. coll. near Dublin, and on the 31st of March 1692 was nominated bish. of Kilmore.”

5. (UK, historical)A Jacobite who favoured 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.