Cocket

In old English law, a cocket was a custom house seal; or a certified document given to a shipper as a warrant that his goods have been duly entered and have paid duty. Hence, in Scotland, there was an officer called the clerk of the cocket. It may have given its name to cocket bread, which was perhaps stamped as though with a seal.

References

• Cocket, p.243  This article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed. (1728). "^{article name needed}". Cyclopædia, or an Universal Dictionary of Arts and Sciences (first ed.). James and John Knapton, et al. 
• "Cocket". Oxford English Dictionary. Oxford University Press. 2nd ed. 1989.