proscriber

plural proscribers

1. One who, or that which, proscribes, denounces, or prohibits.

   I made no connection to the fact that the other proscribers of books were Hitler and the Catholic Church.

   2003, Betsy Blair, The Memory of All that: Love and Politics in New York, Hollywood, and Paris

   2 more examples

   In a period of quiet, he had acquired the name of a man of worth; in darker days, he left the renown of a pitiless proscriber.

   1848, Alphonse de Lamartine, History of the Girondists: Or, Personal Memoirs of the Patriots of the French Revolution, volume 3

   “In principle,” he declared, “proscription is not only a crime, but a fault; history is full of instances, showing how proscribers have in their turn been forced into the ranks of the proscribed."

   1888, “The Four Presidents of the French Republic”, in The American Magazine, volume 25, page 156