Diocese
Diocese , noun
[Old English diocise, Old French diocise, French diocése, Latin dioecesis, from Greek {not transcribed} housekeeping, administration, a province, a diocese, from {not transcribed} to keep house, manage; dia` through + {not transcribed} to manage a household, {not transcribed} a house. See Economy.]
(Ecclesiastical) The circuit or extent of a bishop's jurisdiction; the district in which a bishop exercises his ecclesiastical authority.