coemptio

(from the article `marriage law`) ...was marked by a highly solemnized ceremony involving numerous witnesses and animal sacrifice. It was usually reserved for patrician families. ...
Found on http://www.britannica.com/eb/a-z/c/105

Coemptio

(Latin) a common type of marriage in ancient Roman culture that represented a 'bride purchase,' as the groom paid nummus usus, a penny, and received the bride in exchange; while this purchase was not a real sale, it symbolized the traditional bride purchases of earlier societies; five witnesses were required and the wedding ceremony was much less f...
Found on http://www.hestories.info/greco-roman-world-glossary.html
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