scone vs sponge cake

scone

noun
  • A small, rich, pastry or quick bread, sometimes baked on a griddle. 

  • Frybread served with honey butter spread on it. 

  • The head. 

verb
  • To hit on the head. 

sponge cake

noun
  • A light, soft, baked dessert (commonly layered with cream and jam) that is typically made with flour, sugar, baking powder and eggs, and has a firm, yet well aerated structure, similar to that of a sea sponge. 

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