pixie boot vs sneaker

pixie boot

noun
  • A type of short fashionable boot with low heel and pointed toe. 

sneaker

noun
  • An athletic shoe with a soft, rubber sole. A trainer. 

  • A sneaker male. 

  • One who sneaks. 

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