fet·ter 
(f
ĕt
ər)
n.1. A device, usually one of a pair of rings connected to a chain, that is attached to the ankles or feet to restrict movement.
2. often fetters Something that serves to restrict; a restraint: the fetters of tyranny.
tr.v. fet·tered,
fet·ter·ing,
fet·ters 1. To put fetters on; shackle.
2. To restrict or restrain: thinking that is fettered by prejudice. See Synonyms at hobble.
[Middle English feter, from Old English; see ped- in the Appendix of Indo-European roots.]