Which of the following terms is related to a law that is cancelled?

The term "abrogate" refers specifically to the act of officially canceling or repealing a law, regulation, or formal agreement. When a law is abrogated, it is rendered void and no longer enforceable. This is an essential legal concept as it signifies the withdrawal of authority or the nullification of obligations that may have existed under the law prior to its abrogation.

In contrast, the other terms do not hold the same meaning related to law cancellation. "Abstain" means to refrain from doing something, which does not relate to the canceling of laws. "Abate" refers to reducing the intensity or severity of something, commonly used in the context of a nuisance or a legal action, rather than canceling a law. "Aesthetic" pertains to beauty or the appreciation of beauty and has no legal implications whatsoever. Therefore, abrogate is the only term directly associated with the cancellation of a law.