shell jacket vs tog

shell jacket

noun
  • The jacket of a shell suit. 

  • A short jacket reaching the hips, once part of military uniforms. 

tog

noun
  • A coat. 

  • A unit of thermal resistance, being ten times the temperature difference (in °C) between the two surfaces of a material when the flow of heat is equal to one watt per square metre 

  • A cloak. 

verb
  • To dress (often with up or out). 

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