Which term refers to a legal agreement to repay borrowed money with interest?

The term that refers to a legal agreement to repay borrowed money with interest is "mortgage." A mortgage is a specific type of loan secured by the collateral of real estate property, meaning the borrower offers the property as security for the loan. When a borrower takes out a mortgage, they agree to repay the borrowed amount plus interest over a specified period. If they fail to meet these repayment terms, the lender can take possession of the property through a legal process known as foreclosure.

The other terms listed do not represent this type of financial agreement. A deed is a legal document that conveys ownership of property, a trust is a fiduciary arrangement allowing a third party to hold assets on behalf of a beneficiary, and an easement is a right to use another person's land for a specific purpose. Each of these serves different legal functions unrelated to the concept of repaying borrowed money with interest.