I have translated a LimeSurvey to French, the original version is German.
Now there is one question of the type "list with comment".
I managed to translate the radio options, but where do I find the label for the textarea?
It is still in German ("Ergänzende Informationen können Sie hier eintragen")?

Sound like a bug in the translation file. What exact version of LimeSurvey is used?
www.limesurvey.org/community/contribute/translations-status
For french there seem to be 6 missing translations. But not sure if your case is one of them.

It is Version 2.64.7.

Then I doubt there will be any update. This version is not supported anymore and will not receive any bug fixes.

If you cannot fix the translation, place something like this script in the source of the French question text:

Button Next show «Suivant» ?

Because it's not a translation issue : if it's translation issue : it shown in english not in german.
Do you really set language to fr ? You didn't leave german ?

Yes, everything else is translated to French, except for this little sentence.
In the backend I can "edit the answer options" for the radio buttons, but not for the additional textarea.
I decompiled the German and French .mo-files to .po-files and searched for the sentence, but I could not find it in any of them.
I also tried Tony's solution, but the JavaScript is not inserted.

I also tried Tony's solution, but the JavaScript is not inserted.

Why not?

Did you try a simple alert?

- www.limesurvey.org/manual/Workarounds:_M...tc..29_in_LimeSurvey

But why you don't update to last 2.73 version ? Maybe a dev put a german string here …

I really think it can‘t happen with a stable version …