arboreal vs sylvan

arboreal

adj
  • Covered or filled with trees. 

  • Of, relating to, or resembling a tree. 

  • Living in or among trees. 

noun
  • Any tree-dwelling creature. 

sylvan

adj
  • Wooded, or covered in forest. 

  • Pertaining to the forest, or woodlands. 

  • Residing in a forest or wood. 

noun
  • A fabled deity of the wood; a faun, a satyr. 

  • One who resides in the woods. 

How often have the words arboreal and sylvan occurred in a corpus of books? (source: Google Ngram Viewer )