DIACONAL Meaning of DIACONAL in English [ dʌɪ'ak(ə)n(ə)l ]■ adjective relating to a deacon or deacons.OriginC17: from eccles. L. ~is , from diaconus (see deacon ). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004