/ ˌɑːtʃˈdiːkən; NAmE ˌɑːrtʃ-/ noun
a priest just below the rank of bishop , especially in the Anglican Church
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WORD ORIGIN
Old English arce- , ercediacon , from ecclesiastical Latin archidiaconus , from ecclesiastical Greek arkhidiakonos , from arkhi- chief + diakonos servant (in ecclesiastical Greek Christian minister).