Counterfeiter (noun)

1. A person who makes or uses counterfeit items, such as money, documents, or goods.
2. A person who makes or uses something that is meant to be mistaken for something else.

Origin:

Derived from the combining of the words "counter" (against) and "feiter" (to make something false or fake) , originally used in the context of currency and finance, but can be applied to other things as well .

Examples:

1. The police arrested a counterfeiter who was passing fake currency.
2. He was a counterfeiter of passports and other official documents.
3. She was a counterfeiter of designer handbags.
4. Counterfeiters are a major problem for the fashion industry.
5. The counterfeiter was caught trying to pass off fake stamps as genuine.