bight vs exedra

bight

noun
  • A corner, bend, or angle; a hollow 

  • A curve in a rope 

  • A bend or curve in a coastline, river, or other geographical feature. 

  • An area of sea lying between two promontories, larger than a bay, wider than a gulf 

verb
  • To arrange or fasten (a rope) in bights. 

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 bight and exedra occurred in a corpus of books? (source: Google Ngram Viewer )