The ingredients for mirepoix.
The definition of a mirepoix is a mixture of diced onions, carrots, celery and herbs that is sauteed in butter or oil.
An example of a mirepoix is 2 parts diced onions, 1 part carrots, 1 part celery and herbs sauteed in butter and used to season a stock or soup.
A seasoning composed of finely diced sautéed vegetables and herbs and sometimes diced ham, bacon, or salt pork.
Origin of mirepoixAfter Charles Pierre Gaston François de Lévis, Duc de Mirepoix (1699-1757), French diplomat