"Doing something was a high standard" is still the main meaning of the word "professionell" in German. So someone can make something "unprofessionell" for money or "professionell" without payment.

Another word of classical origin with a striking difference is the meaning of the word "pathetisch" in German, which means "(exaggeratedly) passionate", which corresponds more or less to the meaning of the Ancient Greek word "pathetikos".