lollipop vs popsicle

lollipop

noun
  • An item of confectionery consisting of a piece of candy/sweet attached to a stick. 

  • Something having the shape of a lollipop: a linear stem connected to a round body. 

popsicle

noun
  • Frozen fruit juice, flavored sugar water, or the like, on a stick, of a size to be one serving. 

  • Something cold or frozen. 

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