cricothyroid

The story

1. Ancient Greekκρῐ́κος (krĭ́kos)
2. Proto-Indo-European*weyd-
3. Proto-Indo-European*wéydos
4. Proto-Hellenic*wéidos
5. Ancient Greekεἶδος (eîdos)
6. Ancient Greekκρῐκοειδής (krĭkoeidḗs)
7. New Latincricoīdēs
8. Englishcricoid
9. Englishcrico-
10. Proto-Indo-European*dʰwer-
11. Proto-Hellenic*tʰurā
12. Ancient Greekθῠ́ρᾱ (thŭ́rā)
13. Ancient Greekθῠρεός (thŭreós)
14. Ancient Greekθῠρεοειδής (thŭreoeidḗs)
15. New Latinthyreoīdēs
16. Englishthyroid
17. English todaycricothyroid

From crico- + thyroid.