thyr-

A form of thyro- — Thyroid.

OriginEnglish thyroid ← New Latin thyreoīdēs ← Ancient Greek θῠρεοειδής (thŭreoeidḗs) →
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

prefix
  1. alternativeAlternative form of thyro-, used before a vowel.

    thyrasthenia

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. Englishthyr-

From thyroid.

Full word history & related roots →
Cite this entry
APA

thyr-. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thyr-

MLA

“thyr-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thyr-. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thyr-,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thyr-.

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