Fustic n. (Written also fustoc) The wood of the Maclura tinctoria, a tree growing in the West Indies, used in dyeing yellow; called also old fustic. Note: Other kinds of yellow wood are often called fustic; as that of species of Xanthoxylum, and especially the Rhus Cotinus, which is sometimes called young fustic to distinguish it from the Maclura. See Fustet.
... inks are in commercial use. Documents do, however, often contain yellow marks about which information is required as to their origin. As a rule they are iron rust, picric acid, turmeric, fustic, weld, Persian berries or quercitron. In order to recognize the different colors, the presence or absence of iron rust and picric acid ... — Forty Centuries of Ink • David N. Carvalho Read full book for free!