The buying of the entire supply of a commodity(noun)
A form of civil marriage (in Roman law) in which a fictitious sale of the man and wife took place(noun)
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Use "coemption" in a sentence
"Monopolies, and coemption of wares for re – sale, where they are not restrained, are great means to enrich; especially if the party have intelligence, what things are like to come into request, and so store himself beforehand."
"Monopolies, and coemption of6 wares for re-sale, where they are not restrained, are great means to enrich; especially if the party have intelligence what things are like to come into request, and so store himself beforehand."
"According to the custom of antiquity, he bought his bride of her parents, and she fulfilled the _coemption_ by purchasing, with three pieces of copper, a just introduction to his house and household deities."