Where does “Länsi-Sahara” come from?

Länsi-Sahara (Finnish) comes from Finnish länsi, from Proto-Finnic länci, from Proto-Finnic lanci — lowland.

Ancestry of “Länsi-Sahara”, step by step

Länsi-Sahara traces back through two separate lines of ancestry.

via Finnish länsi

StepLanguageWordMeaning
1Finnishlänsiwest; the West
2Proto-Finniclänciwest
3Proto-Finniclancilowland

via Finnish Sahara

StepLanguageWordMeaning
1FinnishSaharathe Sahara
2Arabicصَحَارَىdeserts

Words derived from “Länsi-Sahara

Every word from Proto-Finnic lanciEvery word from Proto-Finnic länciEvery word from Finnish länsi