shackle

noun

• 1 (shackles) a pair of fetters connected together by a chain, used to fasten a prisoner’s wrists or ankles together.
• a situation or factor that restrains or restricts someone or something:society is going to throw off the shackles of racism and colonialism

• 2a metal link, typically U-shaped, closed by a bolt, used to secure a chain or rope to something.
• a pivoted link connecting a spring in a vehicle’s suspension to the body of the vehicle.

verb

• chain with shackles: the prisoner was shackled to the heavy steel chair in the centre of the room
• restrain; limit:they seek to shackle the oil and gas companies by imposing new controls