Why is 'kitsch' spelled with a 'c'?

[mpross]

How did you find PF?

Google

It's an honor to join such a prestige group of scientists, I will try my best to post queries of interest.

 

[fresh_42]

I wanted to say "Hello again!" and found this (in Germany and on German famous song)

Spoiler: Attention kitsch

by a South African we more or less adopted ...

... but it might be a bit exaggerated. And by the way, why do you write "kitsch" with a "c" according to my dictionary?