Main Entry: fus·tic

Pronunciation: \ˈfəs-tik\

Function: noun

Etymology: Middle English fustyk smoke tree, from Middle French fustoc, from Arabic fustuq, from Greek pistakē pistachio tree — more at pistachio

Date: 15th century

: the wood of a tropical American tree (Chlorophora tinctoria) of the mulberry family that yields a yellow dye; also : any of several similar dyewoods