What is "jougs"

Jougs \Jougs\, n. [F. joug a yoke, L. jugum. See Yoke.] An iron collar fastened to a wall or post, formerly used in Scotland as a kind of pillory. [Written also juggs.] See Juke.
--Sir W. Scott.

n. A chained iron collar once used in churches to expose sinners to public scorn

The jougs, juggs, or joggs (Old French joug, from Lat. jugum, a yoke) was an instrument of punishment formerly used in Scotland, the Netherlands and other countries.