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mutsji or mutsje [Dutch]

1

In the Netherlands, a unit of liquid capacity, = 1/10 kan = 2 pintje, = 0.15 liter (about 0.16 U.S. liquid quarts).

2

In the Dutch East Indies, a unit of liquid capacity, legally defined as 151.6 milliliters.

3

In colonial New York, it became the muche, a unit of liquid capacity, about a fifth of a pint, used for rum. Lederer cites its use in a law of 1673.

Richard M. Lederer, Jr.
Colonial American English. A Glossary.
Essex, Connecticut: A Verbatim Book, 1985.