A more thorough explanation:

Definition: Exrogare (eks-rə-gair-ee) is a Latin term that means to remove something from an old law by a new law. It is also known as abrogare.

Example: In Roman law, if a new law is passed that contradicts an old law, the new law exrogates the old law. For instance, if a law was passed that allowed slavery, but a new law was passed that abolished slavery, the new law would exrogate the old law.

The example illustrates how exrogare is used to remove an old law by a new law. In this case, the new law abolishing slavery exrogates the old law that allowed slavery.