waiver

Short definition from Wiktionary

Noun

1. 1
   The act of waiving, or not insisting on, some right, claim, or privilege.
2. 2
   A legal document removing some requirement, such as waiving a right (giving it up) or a waiver of liability (agreeing to hold someone blameless).
3. 3
   Something that releases a person from a requirement.
4. 4
   The process of waiving or outlawing a person.

Verb

1. 1
   To waive (to relinquish, to forego).
2. 2
   Misspelling of waver.