The Collaborative International Dictionary of English v.0.48:

Foliage \Fo"li*age\, n. [OF. foillage, fueillage, F. feuillage,
   fr. OF. foille, fueille, fueil, F. feulle, leaf, L. folium.
   See 3d Foil, and cf. Foliation, Filemot.]
   [1913 Webster]
   1. Leaves, collectively, as produced or arranged by nature;
      leafage; as, a tree or forest of beautiful foliage.
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   2. A cluster of leaves, flowers, and branches; especially,
      the representation of leaves, flowers, and branches, in
      architecture, intended to ornament and enrich capitals,
      friezes, pediments, etc.
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   Foliage plant (Bot.), any plant cultivated for the beauty
      of its leaves, as many kinds of Begonia and Coleus.
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