What term refers to the legal end of a contract through mutual agreement?

The term that refers to the legal end of a contract through mutual agreement is surrender. This involves both parties agreeing to cancel the contract and thereby releasing each other from any further obligations. Surrender is often utilized in contractual relationships when both parties decide that it is in their best interest to end the agreement, whether due to changing circumstances, dissatisfaction, or other reasons.

Termination, while also related to ending a contract, does not specifically indicate mutual consent; it can happen unilaterally under certain conditions. Modification refers to changes made to a contract rather than its ending, and liquidated damages relate to predetermined compensation for breach of contract rather than the contract's conclusion. Thus, surrender is the correct term for a mutual decision to end a contract.