Where does “Marsala” come from?

Marsala (Sicilian) comes from Arabic مَرْسَى عَلِيّ — Ali's harbor.

Ancestry of “Marsala”, step by step

Step	Language	Word	Meaning
1	Arabic	مَرْسَى عَلِيّ	Ali's harbor

Marsala — Etymology, Origin & Word History | Etymology Explorer