• Containing less fat, salt, sugar, or calories than normal, or claimed to have such.
  • Having certain traits subtracted.


  • To regulate the food of (someone); to put on a diet.
  • To modify one's food and beverage intake so as to decrease or increase body weight or influence health.
  • To eat; to take one's meals.
  • To cause to take food; to feed.


  • From Middle English diet, dyet, diete, from Old French diete, from Medieval Latin dieta ("regimen, regulation; assembly"), from Latin diaeta, from Ancient Greek δίαιτα.
  • From Middle English dieten, dyeten, diȝeten, from Old French dïeter and Medieval Latin diētāre.
  • From Middle English diet, dyet, from Old French diete, from Medieval Latin diēta, diaeta, from Ancient Greek δῐ́αιτα ("way of living, living space; decision, judgement"), influenced by Latin diēs.

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