Jougs, an iron collar hung by a chain in some public place, was fastened round a culprit's neck, who was thus exposed in a sort of pillory; in use in Scotland from the 16th to the 18th centuries.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Jouffroy d'Abbans, Claude, Marquis de * Joule, James Prescott