armband vs bangle

armband

noun
  • A band worn around the arm, usually to symbolize protest or mourning. 

  • An inflatable band worn round the arms to keep afloat in water 

  • A band worn around the arm of the captain of a team. 

bangle

noun
  • A rigid bracelet or anklet, especially one with no clasp. 

  • The cut branch of a tree; a large, rough stick; the largest piece of wood in a bundle of twigs 

verb
  • to flap or hang down loosely, as a hat brim or an animal's ear. 

  • (falconry) to beat about in the air; flutter: said of a hawk which does not rise steadily and then swoop down upon its prey. 

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