A person holding or entitled to the revenues of an ecclesiastical benefice or commenda; one who has been granted a trust or fiefdom.
From Medieval Latin 'commendatarius' (one who holds a commenda), derived from 'commenda' and the Latin agent suffix '-arius'.
A commendatary in the medieval Church could be someone who'd never set foot in their parish but collected its revenues—a system that helped spark the Reformation's criticism of Church corruption.
Complete word intelligence in one call. Free tier — 50 lookups/day.