waiver
noun
[ ˈweɪvə ]
• an act or instance of waiving a right or claim.
• "their acquiescence could amount to a waiver"
Similar:
renunciation,
surrender,
repudiation,
rejection,
relinquishment,
abdication,
disavowal,
refusal,
disaffirmation,
dispensation,
abandonment,
deferral,
disclaimer,
abjuration,