/ ˌpensɪlveɪniə ˈdʌtʃ; NAmE / noun
1.
the Pennsylvania Dutch [ pl. ] a group of people originally from Germany and Switzerland who settled in Pennsylvania in the 17th and 18th centuries
2.
[ U ] a type of German mixed with English spoken by the Pennsylvania Dutch
For more information see the Cultural Guide
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WORD ORIGIN
Dutch from German Deutsch German.