A term used in some countries to signify a certain sum of money which is given by one of the contracting parties to the other, as a sign of the completion of the contract. 2. It does not however bind the parties he who received it may return it in a limited time, or the other may abandon it, and avoid the engagement. 3. It differs from arrhae in this, that the latter is a part of the consideration, while the denarius dei is no part of it. 1 Duverg. n. 132 3 Duverg. n. 49; Repert. de Jur. verbo Denier a Dieu.