circlet vs farthingale

circlet

noun
  • A round body; an orb. 

  • A crown without arches or a covering. 

  • A ring (typically of gold or silver) worn as an ornament on the head. 

  • A small circle. 

farthingale

noun
  • A hooped structure in cloth worn to extend the skirt of women's dresses; a hooped petticoat. 

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