Etymology

euthyroidism

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Today it means: Normal functioning of the thyroid or the physiological state as a result thereof, usually determined by the level of TSH and other thyroid-related functions. Full definition →

English euthyroid ← New Latin thyreoīdēs ← Ancient Greek θῠρεοειδής (thŭreoeidḗs)
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The story

  1. Proto-Indo-European*h₁wes-
  2. Proto-Indo-European*h₁wésus?
  3. Proto-Indo-European*h₁es-?
  4. Proto-Indo-European*h₁su-
  5. Proto-Hellenic*ehu-
  6. Ancient Greekἐΰς (eǘs)
  7. Ancient Greekεὖ (eû)
  8. Englisheu-
  9. Proto-Indo-European*dʰwer-
  10. Proto-Hellenic*tʰurā
  11. Ancient Greekθῠ́ρᾱ (thŭ́rā)
  12. Ancient Greekθῠρεός (thŭreós)
  13. Proto-Indo-European*weyd-
  14. Proto-Indo-European*wéydos
  15. Proto-Hellenic*wéidos
  16. Ancient Greekεἶδος (eîdos)
  17. Ancient Greekθῠρεοειδής (thŭreoeidḗs)
  18. New Latinthyreoīdēs
  19. Englishthyroid
  20. Englisheuthyroid
  21. English todayeuthyroidism

From euthyroid + -ism.

Etymology from Wiktionary, CC BY-SA 4.0.