arbor vs brushwood

arbor

noun
  • A grove of trees. 

  • A shady sitting place or pergola usually in a park or garden, surrounded by climbing shrubs, vines or other vegetation. 

  • A spindle of a wheel. 

  • A bar for supporting cutting tools. 

  • An axis or shaft supporting a rotating part on a lathe. 

brushwood

noun
  • Small trees and shrubs. 

  • Branches and twigs fallen from trees and shrubs. 

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