freeze-up vs frosting

freeze-up

noun
  • A period of extremely cold, freezing weather. 

  • The start of the time when surface waters are frozen over. 

  • The blocking of pipes due to freezing. 

frosting

noun
  • A layer of frost. 

  • Icing, a sweet, often creamy and thick, covering for cakes and other baked goods. 

  • The theft of a car while it is left unattended, especially when its engine is left running in the winter to defrost the car. 

How often have the words freeze-up and frosting occurred in a corpus of books? (source: Google Ngram Viewer )