diminutive vs youngsome

diminutive

adj
  • Of or pertaining to, or creating a word form expressing smallness, youth, unimportance, or endearment. 

  • Very small. 

noun
  • A word form expressing smallness, youth, unimportance, or endearment. For example, doggie from dog, Sophie for Sophia, darling from dear 

youngsome

adj
  • Seemingly young in appearance, manner, or behaviour; youthful 

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