Final answer:
The return of consideration to the aggrieved party in a contract is known as restitution, which aims to restore them to the position they were in before the breach or invalid contract.
Step-by-step explanation:
The return to the aggrieved party of the consideration which she gave to the other party is most commonly referred to as restitution. This is a legal principle that involves restoring the injured party to the position they were in before the contract was breached or voided. When a contract is found not to be valid, or if it has been breached by one of the parties involved, the law seeks to “counter the unjust enrichment” of the other party by returning the value of the consideration that was exchanged. In practical terms, restitution can include the return of property, money, or other forms of compensation that the injured party originally provided.