Where does “fosc” come from?

fosc (Old Occitan) comes from Latin Fuscus, from Latin fuscus, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “fosc”, step by step

StepLanguageWordMeaning
1LatinFuscusswarthy, dusky, dark
2Latinfuscusdark, dim, dimly lit; black, brown; husky, hoarse
3Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European dʰewh₂- →Every word from Latin fuscus →Every word from Latin Fuscus →
fosc — Etymology, Origin & Word History | Etymology Explorer