exedra vs hern

exedra

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

  • A curved bench with a high back. 

hern

noun
  • A recess beside a wide chimney-fireside. 

  • Heron. 

  • Corner, nook. 

  • A corner of angular piece of land; a nook of land projecting into another district, parish, or field. 

pron
  • Hers; her own. 

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