Portionist
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): ( n.) A scholar at Merton College, Oxford, who has a certain academical allowance or portion; - corrupted into postmaster.
(2): ( n.) One of the incumbents of a benefice which has two or more rectors or vicars.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
a term employed to designate a beneficed person in a cathedral who received only half or a moiety of his prebend, called in France a demiprebendary, and in Spain a rationero. Bulrsaerius, in Scottish universities, and the German Buwsch were portions of money given to poor students, while the Cambridge pensioner lives at his own cost.