little boy vs mankin

little boy

noun
  • A male child, especially one younger than ten years of age. 

  • A small saveloy often consumed with tomato sauce at parties, also known as a cocktail sausage or a cheerio. 

  • A male perceived to be weaker than or subservient to another; or a boy who is too young for their job. 

mankin

noun
  • A little man; a manikin. 

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