man·a·cle 
/ˈmænɪkəl/ noun
plural man·a·cles /ˈmænɪkəl/ noun [count] : either one of a set of two metal rings designed to lock around a person's wrists or ankles — usually plural ▪ The prisoner was led into the courtroom in manacles.
— manacle /ˈmænɪkəl/ verb, manacles; manacled; manacling [+ obj]
▪ The prisoner was manacled and led into the courtroom.
▪ The prisoner was manacled and led into the courtroom.
