cubbyhole vs exedra

cubbyhole

noun
  • A small compartment; a pigeonhole 

  • A glove compartment 

  • A small, snug room which may be used as a place of privacy and safety by children 

verb
  • To restrict, limit or narrowly define; to pigeonhole. 

exedra

noun
  • A semicircular recess, with stone benches, used as a place for discussion. 

  • A curved bench with a high back. 

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