Etymology of the Korean currencies
The won is the currency of both North and South Korea. "Won" is a cognate of the Chinese currency unit, the yuan (//), and the Japanese currency unit, the yen (; ¥), meaning "round object". The won is subdivided into 100 jeon ().
Superdollar
It has been confirmed that North Korea has passed off superdollars (Korean: "kattalio") in various countries. The counterfeit bills also circulate both within North Korea and around its border with China. There is, however, some doubt about the reliability of North Korean defectors' claims, on which the United States partially bases its accusations, along with South Korean intelligence sources.