gray vs young

gray

verb
  • To turn progressively older, alluding to graying of hair through aging (used in context of the population of a geographic region) 

  • To cause to become gray. 

  • To become gray. 

  • To give a soft effect to (a photograph) by covering the negative while printing with a ground-glass plate. 

noun
  • An animal or thing of grey colour, such as a horse, badger, or salmon. 

  • an extraterrestrial humanoid with grayish skin, bulbous black eyes, and an enlarged head. 

  • An achromatic colour intermediate between black and white. 

  • A penny with a tail on both sides, used for cheating. 

  • In the International System of Units, the derived unit of absorbed dose of radiation (radiation absorbed by a patient); one joule of energy absorbed per kilogram of the patient's mass. Symbol: Gy 

adj
  • Gray-haired. 

  • Old. 

  • Having a color somewhere between white and black, as the ash of an ember. 

  • Relating to older people. 

  • Having an indistinct, disputed or uncertain quality. 

  • Dreary, gloomy. 

young

verb
  • To cause to appear younger. 

  • To become or seem to become younger. 

  • To exhibit younging. 

noun
  • Offspring, especially the immature offspring of animals. 

adj
  • Of or belonging to the early part of life. 

  • Early. 

  • Youthful; having the look or qualities of a young person. 

  • In the early part of growth or life; born not long ago. 

  • At an early stage of existence or development; having recently come into existence. 

  • Junior (of two related people with the same name). 

  • advanced in age; (far towards or) at a specified stage of existence or age. 

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