/ ˈfəʊliɪdʒ; NAmE ˈfoʊ-/ noun
[ U ] the leaves of a tree or plant; leaves and branches together :
dense green foliage
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WORD ORIGIN
late Middle English foilage (in the sense design resembling leaves ): from Old French feuillage , from feuille leaf, from Latin folium . The change in the first syllable was due to association with Latin folium .