thyro-

UK/θʌɪ.ɹəʊ/US/θaɪ.ɹoʊ/

prefix

Thyroid.

OriginEnglish thyroid ← New Latin thyreoīdēs ← Ancient Greek θῠρεοειδής (thŭreoeidḗs) →
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Meanings

prefix

alternative thyr-

  1. medicineThyroid.

Origin

  1. Proto-Indo-European*dʰwer-
  2. Proto-Hellenic*tʰurā
  3. Ancient Greekθῠ́ρᾱ (thŭ́rā)
  4. Ancient Greekθῠρεός (thŭreós)
  5. Proto-Indo-European*weyd-
  6. Proto-Indo-European*wéydos
  7. Proto-Hellenic*wéidos
  8. Ancient Greekεἶδος (eîdos)
  9. Ancient Greekθῠρεοειδής (thŭreoeidḗs)
  10. New Latinthyreoīdēs
  11. Englishthyroid
  12. Englishthyro-

From thyroid + -o-.

Full word history & related roots →

Translations

Spanish tiro-
  • tiro-thyroid
Cite this entry
APA

thyro-. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/thyro-

MLA

“thyro-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thyro-. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “thyro-,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/thyro-.

Source: thyro- on Wiktionary, CC BY-SA 4.0.