Install kde-l10n-nb by entering the following commands in the terminal:
sudo apt update sudo apt install kde-l10n-nb
Description:
nb (nb) localization for KDE
This package contains the translation files for all KDE core applications for the language "nb".
Homepage: http://l10n.kde.org/team-infos.php?teamcode=nb
Version: 4:17.08.3-0ubuntu4
Section: universe/kde