fustique

Fustic traces back through Old French fustique and Spanish fústete to Arabic fustuq (فستق), which means 'pistachio.' The pistachio tree produced a greenish-yellow dye used in the medieval Mediterranean. When Spanish colonizers in the Caribbean encountered a New World tree (Maclura tinctoria) that produced a similarly vivid yellow, they borrowed the old name. The trees are unrelated.

Old fustic, from the Caribbean tree, became one of the most important dyestuffs in the colonial trade. The heartwood produces a strong yellow that can be modified to olive, gold, or brown depending on the mordant used. English dyers imported enormous quantities from Jamaica and Central America starting in the 1500s. By 1600, fustic was listed alongside indigo and logwood as a primary colonial dye export.

The confusion deepened. 'Young fustic' refers to a completely different plant—the smoke tree (Cotinus coggygria), native to southern Europe. It produces a weaker yellow-orange dye. So fustic names three unrelated things: a pistachio tree in the Middle East, a tropical hardwood in the Caribbean, and a shrub in the Mediterranean. The word traveled farther than any of the trees it described.

Synthetic aniline dyes destroyed the fustic trade in the 1870s. William Henry Perkin's mauveine (1856) and subsequent synthetic yellows replaced vegetable dyes within a generation. Today fustic is used almost exclusively by artisan natural dyers and historical textile conservators. The word survives in specialized vocabularies, a ghost of a trade that once moved ships across oceans.