Where does “Sachalin” come from?

Sachalin (Czech) comes from Russian Сахали́н, from Manchu ᠰᠠᡥᠠᠯᡳᠶᠠᠨ, from Jurchen 撒哈良.

Ancestry of “Sachalin”, step by step

StepLanguageWordMeaning
1RussianСахали́нSakhalin
2Manchuᠰᠠᡥᠠᠯᡳᠶᠠᠨblack
3Jurchen撒哈良—
Every word from Jurchen 撒哈良 →Every word from Manchu ᠰᠠᡥᠠᠯᡳᠶᠠᠨ →Every word from Russian Сахали́н →