Etymograph

English

nonthyroid

Nonthyroid comes from Ancient Greek θῠρεοειδής ‘Shield-shaped’, from Proto-Indo-European *wéydos ‘seeing’, and ultimately from *weyd- ‘to see’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*weyd-1‘to see’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*wéydos1‘seeing’reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*wéidos1reconstructed
  4. Ancient Greekc. 800–300 BCEεἶδος1eîdos
  5. Ancient Greekc. 800–300 BCEθῠρεοειδής1thŭreoeidḗs‘Shield-shaped’
  6. New Latinmodernthyreoīdēs1
  7. English1500–presentthyroid1
  8. Englishtodaynonthyroid1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English nonthyroid

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*weyd-Wiktionary, English nonthyroid‘to see’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*wéydosWiktionary, English nonthyroid‘seeing’reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*wéidosWiktionary, English nonthyroidreconstructed
  4. Ancient Greekc. 800–300 BCEεἶδοςWiktionary, English nonthyroideîdos
  5. Ancient Greekc. 800–300 BCEθῠρεοειδήςWiktionary, English nonthyroidthŭreoeidḗs‘Shield-shaped’
  6. New LatinmodernthyreoīdēsWiktionary, English nonthyroid
  7. English1500–presentthyroidWiktionary, English nonthyroid
  8. EnglishtodaynonthyroidWiktionary, English nonthyroid

Linked words

through Proto-Indo-European *weyd- ‘to see’

story, guy, video, idea, review, visit, evidence, advice, provide, interview, guide, witness, historic, vision, wisdom, visa, advise, invisible, wit, wizard, historian, visibility, vista, evident, wisely, witty, revise, guise, prudent, envious, jurisprudence, unwise, prudence, revue, avis, improvise, purview, druid, twit, vide, 103 more

through Proto-Indo-European *wéydos ‘seeing’

wise, 47 more

through Proto-Hellenic *wéidos

steroidal, eidolon, 47 more

through Ancient Greek εἶδος

idol, tabloid, steroid, idyll, trapezoid, colloid, sigmoid, hyoid, 49 more

through English thyroid

hypothyroidism, hyperthyroidism, parathyroid, thyroxine, thyroiditis, 13 more

Today it means

adj Not thyroid.

Sources

Sources: Wiktionary, “nonthyroid”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *weyd- / nonthyroid