Pygg is an orange colored clay commonly used during the Middle Ages as a cheap material for pots to store money, called pygg pots or pygg jars. There is dispute as to whether "pygg '' was simply a dialectal variant of "pig. '' By the 18th century, the term "pig jar '' had evolved to "pig bank ''. As earthenware was supplanted by other materials, such as glass, plaster, and plastic, the name gradually began to refer specifically to the shape of the bank, instead of what was used to make it.
where did the idea of a piggy bank come from
Pygg is an orange colored clay commonly used during the Middle Ages as a cheap material for pots to store money