Only in the translation files (check about how to translate limesurvey in the manual - please look only at the local changes, personal preferences should not make their way in the general translation (as long as the translation isn't wrong).
You will need to edit the .po translation files with a software called po-edit. Please note that these changes will be overwritten by updates, if the translation of this language receives an update.
I answer at the LimeSurvey forum in my spare time, I'm not a LimeSurvey GmbH employee.
No support via private message.
