If you were trying to write "renunciation," it means the act of formally giving up a claim, right, or possession.
For example:
* Renunciation of citizenship: Giving up your citizenship in one country to become a citizen of another.
* Renunciation of inheritance: Refusing to accept an inheritance offered to you.
* Renunciation of a claim: Giving up a legal claim to something, such as property.
Please let me know if you had something else in mind. I'm happy to help!