diminutive vs hairline

diminutive

adj
  • Very small. 

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

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

hairline

adj
  • very thin, as thin as a hair 

noun
  • A fishing line made from hair. 

  • The line along one's forehead where hair starts growing. 

  • A very thin line in writing, drawing, or typography. 

  • A very thin fissure. 

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