Where does “fustin” come from?

fustin (English) comes from English fustic, from Middle English fustik, from Middle French fustec, from Middle French fustet, from Old Occitan fustet, from Arabic فُسْتَق — pistachio.

fustin (English): A yellow dye obtained from fustic, "Cotinus...

Definitions

A yellow dye obtained from fustic, "Cotinus...

Ancestry of “fustin”, step by step

fustin traces back through two separate lines of ancestry.

via English fustic

Step	Language	Word	Meaning
1	English	fustic	A tropical American tree, Maclura tinctoria,...
2	Middle English	fustik	—
3	Middle French	fustec	—
4	Middle French	fustet	smoke tree, "Cotinus coggygria"
5	Old Occitan	fustet	smoke tree, "Cotinus coggygria"
6	Arabic	فُسْتَق	pistachio

via English in

Step	Language	Word	Meaning
1	English	in	Used to indicate location, inclusion, or position...
2	Middle English	in	Any kind of accomodation; particularly; A home or...
3	Old English	in	in; Alternative form of inn
4	Proto-West Germanic	*in	—

Every word from Arabic فُسْتَق →Every word from Old Occitan fustet →Every word from Middle French fustet →