circlet vs headband

circlet

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

  • A round body; an orb. 

  • A crown without arches or a covering. 

  • A small circle. 

headband

noun
  • A strip of fabric worn around the head. 

  • A hair-accessory, made of a flexible material and curved like a horseshoe, for holding one's hair back. 

  • A strip of fabric attached to the top of the spine of a book; used as decoration and reinforcement. 

  • A thin slip of iron on the tympan of a printing-press. 

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