A term, used originally in the civil law, but now generally adopted, denoting a contract in which both the contracting parties are bound to fulfill obligations reciprocally towards each other; as a contract of sale, where one be-comes bound to deliver the thing sold, and the other to pay the price of it Montpelier Seminary v. Smith, 69 Vt 382, 38 Atl. 66
Source: Black's Law Dictionary 2nd Ed (1910)
