denier a dieu

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
DENIER A DIEU, French law. It is a sum of money which the hirer of a thing 
gives to the other party as evidence, or for the consideration of the * 
contract, which either party may annul, within twenty-four hours, the one 
who, giving the denier a dieu, by demanding, and the other by returning it. 
It differs from arrhae. Vide Arrhae; Denarius Dei. 
    

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