noun
waiver
WAY-ver/ˈweɪvər/
The voluntary giving up of a right or requirement.
The signed waiver accompanies the person's voluntary return of the claim token.

Etymology
Weyver meant “to abandon” or “waive.” Anglo-French legal usage could turn an infinitive into a noun, so waiver names the act of surrendering a right or claim.
In context
The third is a liability waiver which typically means you are giving up your right to hold the other party responsible if something goes wrong within certain limits
More examples
- Participants sign a waiver before joining the climbing class.
- The defendant's waiver of the right to a jury trial is voluntary.
- The college offers waivers of its testing requirement.
Forms
waiver · waivers
waive verb — Voluntarily give up a right or requirement.