Meaning

noun a yellow dye made from the bark of the quercitron oak tree

noun medium to large deciduous timber tree of the eastern United States and southeastern Canada having dark outer bark and yellow inner bark used for tanning; broad five-lobed leaves are bristle-tipped

originFrom blend of Latin quercus + French citron, coined by an English speaker, Edward Bancroft (1745-1821), with translingual applicability for international scientific vocabulary.

Etymology from Wiktionary, CC BY-SA 3.0