This other term for a pastor is derived from the Middle Latin word persona
The term role, synonymous with "part," is similarly derived from such 
rolls of ... PASTORAL (Latin pastor, "shepherd"): An artistic composition dealing 
with... [DOC] [TLE] Minister - Online Etymology Dictionary [PAR] 1300, "one who acts upon the authority of another," from Old French menistre ... 
from Latin minister (genitive ministri) "inferior, servant, priest's assistant" (in... [DOC] [TLE] How Different Are the Roles of Ministers, Pastors, Priests ... [PAR] Sep 8, 2016 ... Technically pastors, priests, reverends, rectors, parsons, vicars, and ....