👉 A donack is a type of currency that was used in ancient Greece and Rome. It consisted of a coin with a small hole at the top for the money to be inserted into, which would then be put into a bag or other container. The donack was often worn on the wrist or belt as a symbol of wealth and status. The term "donack" is also used in modern times to refer to any type of currency that has a hole at the top for inserting money inside.