Where does “Swahililand” come from?

Swahililand (English) comes from English Swahili, from Swahili Mswahili, from Swahili m-, from Arabic سَوَاحِل, from Arabic سَاحِل — coast; boundary, coast; border of the desert.

Swahililand (English): The region along the coast of East Africa where Swahili is spoken

Definitions

The region along the coast of East Africa where Swahili is spoken

Ancestry of “Swahililand”, step by step

Swahililand traces back through two separate lines of ancestry.

via English Swahili

Step	Language	Word	Meaning
1	English	Swahili	An agglutinative language of the Bantu branch...
2	Swahili	Mswahili	A Swahili person
3	Swahili	m-	The prefix for noun class 1 denoting humans; The...
4	Arabic	سَوَاحِل	coastal dwellers
5	Arabic	سَاحِل	coast; boundary, coast; border of the desert

via English Land

Step	Language	Word	Meaning
1	English	Land	The part of Earth which is not covered by oceans or other bodies of water
2	Middle English	land	Alternative form of lond; urine
3	Old English	hland	urine
4	Proto-Germanic	hlandą	urine
5	Proto-Indo-European	klān-	liquid, wet ground

Every word from Arabic سَاحِل →Every word from Swahili m- →Every word from Arabic سَوَاحِل →