freezer vs icehouse

freezer

noun
  • An appliance or room used to store food or other perishable items at temperatures below 0° Celsius (32° Fahrenheit). 

  • A Parkinson's disease patient that experiences freezing of gait (FOG) episodes. 

  • The section of a refrigerator used to store food or other perishable items at a temperature below 0° Celsius (32° Fahrenheit). 

icehouse

noun
  • A deep cellar or outdoor building used for the storage of ice or snow; sometimes also used to store food at low temperature. 

  • An ice hockey rink. 

  • A cold state in global climate. 

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