MIREPOIX Meaning of MIREPOIX in English [ 'mɪəˌpwα: ]■ noun a mixture of sautéed chopped vegetables used in various sauces.OriginFr., named after the 18th-cent. French general Duc de Mirepoix . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004