Brownie vs brat

Brownie

noun
  • A junior Girl Scout. 

  • A junior Girl Guide. 

name
  • A nickname of the surname Brown. 

brat

noun
  • A child (at any age) of an active military service member. 

  • A human child. 

  • A thin bed of coal mixed with pyrites or carbonate of lime. 

  • A turbot or flatfish. 

  • A child who is regarded as mischievous, unruly, spoiled, or selfish. 

  • A rough cloak or ragged garment. 

  • Bratwurst. 

verb
  • To act in a bratty manner (as the submissive). 

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