valonia /vəˈlōnēə, vəˈloʊniə 
/ ▸ 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 oak, which yield a black dye and are used in tanning.
– ORIGIN early 18th century : from Italian vallonia, based on Greek balanos ‘acorn’.
EnglishOxford New American Dictionary
