A more thorough explanation:

Definition: A releasor is a person who gives up their ownership or right to something to another person. It can also refer to someone who gives up their claim to something.

Example 1: John signed a document as a releasor, giving up his claim to the inheritance left by his late grandfather.

Example 2: The company required the releasor to sign a waiver before participating in the dangerous activity.

These examples illustrate how a releasor can give up their rights or claims to something. In the first example, John gave up his claim to the inheritance, while in the second example, the releasor signed a waiver to give up their right to sue the company in case of an accident.