shackle

(noun) a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner). Synonyms: bond, hamper, trammel.

(noun) a U-shaped bar; the open end can be passed through chain links and closed with a bar.

(verb) bind the arms of. Synonyms: pinion.

(verb) restrain with fetters. Synonyms: fetter.