acquiescence

noun

Etymology: Etymology tree French acquiescencebor. English acquiescence Borrowed from French acquiescence.

1. A silent or passive assent or submission, or a submission with apparent consent, distinguished from avowed consent on the one hand, and on the other, from opposition or open discontent; quiet satisfaction.

   “We were accustomed to prompt, if not always cheerful acquiescence to Atticus’s instructions, but from the way he stood Jem was not thinking of budging.”

   “reluctant acquiescence”

2. Inaction, passivity, or neglect to take legal action when it is called for in order to assert, preserve, or safeguard a right, and which inaction implies the abandonment of said right.