relinquish

/rɪˈlɪŋkwɪʃ/
verb
  1. To give up or let go of something, such as a possession, right, or responsibility.
    • The king was forced to relinquish his throne after the revolution.
    • She decided to relinquish her claim to the inheritance.
    • He had to relinquish control of the company to his partner.
  2. To stop holding something physically; to release one's grip.
    • He refused to relinquish the rope, even as his hands grew tired.
    • The guard ordered the prisoner to relinquish the weapon.
    • The child reluctantly relinquished the toy to her younger brother.