the.com/diocese

means The district a bishop is officially in charge of, made up of a bunch of local parishes under one central administration.

from From Greek 'dioikesis,' meaning 'housekeeping' or 'administration' — built from 'oikos,' house, the same root that gives us 'economy.' The Romans borrowed it as 'dioecesis' to mean an administrative province of the empire, a big bureaucratic territory run from one office. When the Christian church later organized itself along Roman administrative lines, it inherited the word along with the map — so a diocese is literally 'household management' scaled up to govern souls instead of servants.