If you’re fluent in German and/or Yiddish, isn’t there a chance that you’ll understand some Pennsylvanian Dutch words because the language is a German dialect?
Joseph is correct. (Ouch!! that hurt to say) Pennsylvania “Dutch” Is “Deutsche”. A dialect of German called Mittel Hoch Deutche which, incidentally, is the root language of Yiddish.
Hamish and Amish. Recently a group was taken on a walking tour of Crown Heights. When Rabbi Beryl Epstein greeted them with “Zei Gezunt” they immediately understood.