arbor vs holder

arbor

noun
  • A spindle of a wheel. 

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

  • A grove of trees. 

  • A bar for supporting cutting tools. 

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

holder

noun
  • A thing that holds. 

  • A person who temporarily or permanently possesses something. 

  • The defending champion. 

  • One who is employed in the hold of a vessel. 

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