Acquiescence (noun)

1. The act of accepting, complying, or submitting passively or without protest.
2. The state of being in agreement or consent without actively participating or taking a strong stance.
3. The act of complying with the wishes or demands of others willingly.

Origin:

From the latin acquiescentia, from acquiescere ("to grow quiet, become satisfied"), from ad- ("to") + quiescere ("to be quiet").

Examples:

1. His acquiescence to her request was surprising.
2. Her acquiescence to the demands of the kidnappers was a sign of weakness.
3. The government's acquiescence to the demands of the protesters was seen as a victory.
4. The company's acquiescence to the demands of the union led to a strike.
5. His acquiescence in her decision was seen as a sign of trust and respect.