S: (n) restraint, constraint (a device that retards something's motion) "the car did not have proper restraints fitted"
S: (n) device (an instrumentality invented for a particular purpose) "the device is small enough to wear on your wrist"; "a device intended to conserve water"
W: (v) hamper [Related to: hamper] (put at a disadvantage) "The brace I have to wear is hindering my movements"
W: (v) hamper [Related to: hamper] (prevent the progress or free movement of) "He was hampered in his efforts by the bad weather"; "the imperialist nation wanted to strangle the free trade between the two small countries"
W: (v) trammel [Related to: trammel] (place limits on (extent or amount or access)) "restrict the use of this parking lot"; "limit the time you can spend with your friends"
S: (n) shackle (a U-shaped bar; the open end can be passed through chain links and closed with a bar)