The world Luxembourgish gets me chuckling each time.
2
Luxembourgish and Irish are the only official national languages of EU member-states that are not official EU languages.
3
That's sent many an American company to Luxembourgish (yes, a real word and the right one) banks.
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Luxembourgish, the native language, sounds like a mixture of German and Dutch - yet French is what you'll most likely be addressed in.
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Nor any human language-save ,inone notable exception, Luxembourgish, which is only comprehensible to bankers and Luxembourgers, and therefore hardly of any use at all.
Uso de luxemburgish en inglés
1
The following groups were better informed: Luxemburgish nationals, younger people, and participants with higher education level.