valonia /vəˈləʊniə 
/ ▸ noun (also valonia oak) an evergreen oak tree native to southern Europe and western Asia. Quercus macrolepis, family Fagaceae.
▪ the acorn cups of the valonia, which yield a black dye and are used in tanning.
– ORIGIN early 18th century: from Italian vallonia, based on Greek balanos ‘acorn’.
EnglishOxford Dictionary of English
