boa vs fichu

boa

noun
  • A type of long scarf; typically made from synthetic or real feathers (or occasionally fur), and usually worn by being draped across the shoulders with the ends hanging low, sometimes also with a loop around the neck. 

  • Any of a group of large American snakes, of the genus Boa, subfamily Boinae, or family Boidae, including the boa constrictor and the emperor boa of Mexico. 

fichu

noun
  • A woman's lightweight triangular scarf worn over the shoulders and tied in front, or tucked into a bodice to cover the exposed part of the neck and chest. 

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