DIACONATE Meaning of DIACONATE in English [ dʌɪ'akəneɪt , -ət ]■ noun the office of deacon. ↘a body of deacons collectively.OriginC18: from eccles. L. diaconatus , from diaconus (see deacon ). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004