chaplet vs headband

chaplet

noun
  • A headdress in the form of a wreath made of leaves, flowers or twigs woven into a ring. 

  • A set of repetitive prayers, other than the Rosary, typically prayed with a string of beads. 

  • The Chaplet of Divine Mercy, the most well-known chaplet in the Catholic Church. 

  • A metal support for a cylindrical pipe. 

  • A garland or circlet for the head. 

  • A molding in the form of a string of beads; a bead molding. 

  • A small chapel or shrine. 

  • A bent piece of sheet iron, or a pin with thin plates on its ends, for holding a core in place in the mould. 

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 chaplet and headband occurred in a corpus of books? (source: Google Ngram Viewer )