OMNIUM GATHERUM Meaning of OMNIUM GATHERUM in English [ ˌɒmnɪəm'gaδərəm ]■ noun a collection of miscellaneous people or things.OriginC16: mock L., from L. omnium 'of all' and gather + the L. suffix -um . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004