hairline vs pastel

hairline

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

  • A fishing line made from hair. 

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

  • A very thin fissure. 

adj
  • very thin, as thin as a hair 

pastel

noun
  • A crayon made from such a paste. 

  • A traditional dish in various Latin American countries, resembling a tamale, pasty, or calzone. 

  • Any of several subdued tints of colors, usually associated with pink, peach, yellow, green, blue, and lavender 

  • A drawing made with any of those colors. 

  • A type of dried paste used to make crayons. 

  • Woad. 

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