A more thorough explanation:

An antenuptial agreement, also known as a prenuptial agreement, is a legal contract made between two parties before they get married. This agreement allows them to keep certain assets separate during the marriage and in case of divorce.

For example, in Massachusetts, an antenuptial agreement is defined as a written contract made before marriage that designates which property will remain or become the property of the husband or wife. The agreement can limit the estate of the property and must be signed by both parties voluntarily. Similarly, in West Virginia, an antenuptial agreement is an agreement made before marriage that determines the property rights and interests of the prospective husband and wife.

These examples illustrate how an antenuptial agreement can be used to protect individual assets and property rights in case of divorce. It is important to follow state laws and regulations to ensure that the agreement is legally binding.