The Collaborative International Dictionary of English v.0.48:

Manacle \Man"a*cle\, v. t. [imp. & p. p. Manacled
   (m[a^]n"[.a]*k'ld); p. pr. & vb. n. Manacling.]
   To put handcuffs or other fastening upon, for confining the
   hands; to shackle; to confine; to restrain from the use of
   the limbs or natural powers.
   [1913 Webster]

         Is it thus you use this monarch, to manacle and shackle
         him hand and foot ?                      --Arbuthnot.
   [1913 Webster]