farthingale vs hula hoop

farthingale

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

hula hoop

noun
  • A toy in the form of a large hoop which is twirled around various parts of the body, especially the waist. 

verb
  • To use a hula hoop. 

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