A more thorough explanation:

Definition: To formally cancel or repeal a law, contract, or agreement through an act of legislation, constitutional authority, or custom.

Example 1: The Supreme Court of Michigan explained that an existing constitutional provision can be altered or abrogated if a proposed amendment would change the existing wording of the provision or render it fully inoperative. This means that a law or provision can be completely removed or changed through a formal process.

Example 2: In Seminole Tribe v. Florida, the U.S. Supreme Court ruled that Congress cannot abrogate a state's sovereign immunity under Article One of the Constitution. This means that Congress cannot take away a state's right to immunity from lawsuits without the state's consent.

Example 3: In contract and insurance law, to abrogate is to rescind or terminate a contract. For example, if two parties agree to a contract and one party fails to fulfill their obligations, the other party may choose to abrogate the contract and nullify its existence.

Overall, to abrogate means to formally cancel or repeal a law, contract, or agreement through a formal process or act of authority.