sprog vs sproglet

sprog

noun
  • A child. 

  • A new recruit. 

  • A deflection-limiting safety device used in high performance hang gliders. 

verb
  • To produce children. 

  • To ejaculate, to come. 

sproglet

noun
  • A small child. 

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