Suður
Suður is the Icelandic word for the cardinal direction south. It is used as a noun to designate the southern direction and commonly appears in geographic names and road designations. In everyday speech, one might say fara suður, meaning to go south. In toponyms it is common in compounds such as Suðurland (South Iceland) and Suðurnes (the Southern Peninsula region).
Etymology and cognates: Suður derives from Old Norse suður and is cognate with other North Germanic words
Geographic and linguistic usage: The word is widely used in Icelandic place names, geography, and cartography.