The arctic-blue theme family — cold light over quiet fjords, worn by editors; the name enters as itself.
Old Norse nordr (north), the same Germanic root that gives English north; French and other Romance languages took this Germanic word for the direction from seafaring contact, standing alongside rather than replacing Latin's own septentrio, aquilo and boreas.
A named theme rather than a translated idea — the word for north arrives whole, carrying its own cold light rather than standing for a concept.