- shackle (n.)
- Old English sceacel, from Proto-Germanic *skakula- (cf. Middle Dutch, Dutch schakel "link of a chain," Old Norse skökull "pole of a carriage"), of uncertain origin. The common notion of "something to fasten or attach" makes a connection with shake unlikely.
- shackle (v.)
- mid-15c., from shackle (n.). Related: Shackled; shackling.