Old English suþ

← Proto-Germanic *sunþrą (inherited)

← Old High German sunt (cognate)

← Old Norse suðr (cognate)

→ English Sussex (compound)

→ English Sutton (compound)

→ Catalan sud (derived)

→ Spanish sur (derived)

→ French sud (derived)

→ Galician sur (derived)

→ Italian sud (derived)

→ Romanian sud (derived)