The story
- Proto-Indo-European*dʰwer-
- Proto-Hellenic*tʰurā
- Ancient Greekθῠ́ρᾱ (thŭ́rā)
- Ancient Greekθῠρεός (thŭreós)
- Proto-Indo-European*weyd-
- Proto-Indo-European*wéydos
- Proto-Hellenic*wéidos
- Ancient Greekεἶδος (eîdos)
- Ancient Greekθῠρεοειδής (thŭreoeidḗs)
- New Latinthyreoīdēs
- Englishthyroid
- Proto-Indo-European*leǵ-
- Proto-Indo-European*lóǵos
- Proto-Hellenic*lógos
- Ancient Greekλόγος (lógos)
- English todaythyroidologist
From thyroid + -ologist.
Etymology from Wiktionary, CC BY-SA 4.0.