arbor vs sanctuary

arbor

noun
  • 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 spindle of a wheel. 

  • A bar for supporting cutting tools. 

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

sanctuary

noun
  • A place of safety, refuge, or protection. 

  • A state of being protected, asylum. 

  • The consecrated (or sacred) area of a church or temple around its tabernacle or altar. 

  • My car is a sanctuary, where none can disturb me except for people who cut me off. 

  • An area set aside for protection. 

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