The word frolic comes from the Dutch, "vroolijk" which means happy. It also has roots in Old High German word, "fro" which also means happy.
froh = happy froh = pleased froh = glad
Happy Friday in German is glücklicher Freitag
Chre is not a German word
Assuming you mean "how" to say happy in German, there are a couple of different ways: Froh and gluecklich.
No, "danka" is not a German word. The correct German word is "danke". "Danke" is the German word for "thank you".
The word for platypus in German is "Schnabeltier".
German is not a compound word.
"mit" is the German word for "with".
The German word for their is "Ihre."
The word FROM in German is von
The German word for when is wenn.