fustic, n. a yellow dye obtained from either of two kinds of wood, esp. old fustic.
old fustic
1 a tropical tree, Chlorophora tinctoria, native to America.
2 the wood of this tree.
young fustic
1 a sumac, Cotinus coggyria, native to Europe (also called Venetian sumac).
2 the wood of this tree.
F f. Sp. fustoc f. Arab. fustuk f. Gk pistake pistachio