During the installation, with the language set to German, one entry in the keyboard layouts is translated wrong.
It says “Polieren”, it should be “Polnisch”. “polieren” is the translation of “polish”, as in “make shiny”. What is obviously meant hier is “Polish”→“Polnisch” as in “related to Poland, the country”.
Thanks for the correction.
The word "Polieren" does no longer appear in FreeDOS 1.3 and FDT2407. So I think this report can be closed.
As it looks like there is nobody who translated the setup text into polish till today. So it makes no sense to add polish during the setup routine.