Where does “Sudan Selatan” come from?

Sudan Selatan (Malay) comes from Malay selatan, from Proto-Malayic sAlatan, from Proto-Malayo-Polynesian salatan — south or south wind.

Ancestry of “Sudan Selatan”, step by step

Sudan Selatan traces back through two separate lines of ancestry.

via Malay selatan

StepLanguageWordMeaning
1Malayselatansouth
2Proto-MalayicsAlatan
3Proto-Malayo-Polynesiansalatansouth or south wind

via English South Sudan

StepLanguageWordMeaning
1EnglishSouth Sudanformerly the southern part of Sudan
Every word from Proto-Malayo-Polynesian salatanEvery word from Proto-Malayic sAlatanEvery word from Malay selatan