arboreal vs timbered

arboreal

adj
  • Covered or filled with trees. 

  • Of, relating to, or resembling a tree. 

  • Living in or among trees. 

noun
  • Any tree-dwelling creature. 

timbered

adj
  • Wooded; bearing timber; forested. 

  • Made from timber, especially large or coarsely finished timber. 

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