SUMMA Meaning of SUMMA in English [ 'sʊmə , 'sʌmə ]■ noun ( plural ~e -mi: ) literary a ~ry of what is known of a subject.OriginC18: from L., lit. 'sum total' (a sense reflected in ME). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004