afforested vs arboreal

afforested

adj
  • Created by afforestation. 

arboreal

adj
  • Covered or filled with trees. 

  • Of, relating to, or resembling a tree. 

  • Living in or among trees. 

noun
  • Any tree-dwelling creature. 

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