Meanings of luxembourgish in English

The world Luxembourgish gets me chuckling each time.

Luxembourgish and Irish are the only official national languages of EU member-states that are not official EU languages.

That's sent many an American company to Luxembourgish (yes, a real word and the right one) banks.

Luxembourgish, the native language, sounds like a mixture of German and Dutch - yet French is what you'll most likely be addressed in.

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.