Gute Nacht is the translation in German. It is translated from English to German. German is mostly spoken in the European countries.
Nacht is the German word for night.
The German word for how is wie.
und is and in German
The German word for Why is Varrum
Ich
sind
Wo.
mien
zu
The German word for "book" is "Buch"
At can be translated as an, bei or auf in German.
The German word for mother is Mutter.