Etymology

From Middle English bischopdom, from Old English biscepdōm, bisceopdōm, biscopdōm ‎(“the province of a bishop; a bishopric”), equivalent to bishop +‎ -dom. Cognate with Dutch bisdom ‎(“bishopdom”), German Bistum ‎(“bishopdom”), Danish bispedømme ‎(“bishopdom”), Swedish biskopsdöme ‎(“bishopdom”), Icelandic biskupsdæmur, biskupsdæmi ‎(“bishopdom”).