Etymology
From Middle English bischopdom, from Old English bisċopdōm, bisċeopdōm, bisċepdōm (“the province of a bishop; a bishopric”), from Proto-West Germanic *biskopadōm, equivalent to bishop + -dom. Cognate with Saterland Frisian Bisdum (“bishopdom”), West Frisian bisdom (“bishopdom”), Dutch bisdom (“bishopdom”), German Bistum (“bishopdom”), Danish bispedømme (“bishopdom”), Swedish biskopsdöme (“bishopdom”), Icelandic biskupsdæmur, biskupsdæmi (“bishopdom”).