Relating to or resembling trees, or having the characteristics or qualities of a tree.
Derived from Latin 'arborius,' from 'arbor' (tree), with the English adjectival suffix -y added. It's an archaic or poetic form rarely used in modern English.
This wonderfully obscure adjective fell out of use as science developed more specific terminology, but it captures something Shakespeare or Milton might have appreciated—the simple beauty of being 'tree-like.'
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