from The Century Dictionary and Cyclopedia
- n. Same as carcanet.
Sorry, no etymologies found.
The gardens of the royal palaces had always been open to well-dressed citizens, but notices forbade entrance to beggars, servants, and all ill-clad persons under pain of imprisonment, the carcan, and other graver penalties.
 The pillory (_carcan_) in England is generally made very high like that raised to exposing the king of France.
On a pile of straw, loaded with fetters and his neck encircled by an iron carcan, sat a haggard man, of uncertain age, clothed in rags.