euthyroid

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. English todayeuthyroid

Coined between 1920 and 1925 from Greek eu- + thyroid.