priestdom

noun2

1. •
   (rare) Priests collectively or priests of a particular religious group or affiliation collectively.

   • The Social Democracy will not recede; it will pursue it course and accomplish its design, even though all priestdom should rise against it, like a cloud of locusts thick enough to darken the sun. — 1886
2. •
   (rare) Political rule or sweeping social control exercised by a class of priests; a ruling class of priests.

   • "They demolished," he says,"by the Word of God, the priestdom of the Pope and his lofty elevation." — 1863