makeup vs mental age

makeup

noun
  • An item's composition. 

  • Cosmetics; colorants and other substances applied to the skin to alter its appearance. 

  • Replacement; material used to make up for the amount that has been used up. 

  • A test given to students allowing them to repeat failed material. 

verb
  • To put makeup on (someone or something). 

mental age

noun
  • How old one appears to be based solely on mental ability and function. 

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