The duit (pronounced [ˈdœyt]) (plural: duiten; English: doit[1]) was an old low-value Dutch copper coin.
[1] The Dutch East India Company (VOC) commissioned a special coin with a monogram engraved on it in order to prevent smuggling.
[4] The coin's name was preserved in the Netherlands for a long time as vierduitstuk (or 'plak'[6]), because it was worth 4 duiten = half a stuiver (or 2½ cents).
The Duit is also used in Dutch India making Duttu a slang for low denomination money in Tamil.
The Duit circulated also in the duchy of Cleves and Guelders, which may be the reason why in the 18th century the expression kein Deut entered the German language, meaning not a bit.