Etymograph

English

extrathyroid

Extrathyroid 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. Englishearliest quotation 2015extrathyroid1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English extrathyroid
  2. Earliest quotation in Wiktionary’s entry: 2015, Jian Zhu et al., Clinicopathological features of recurrent papillary thyroid : “In conclusion, initial surgery approach, tumor size, extrathyroid invasion,…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*weyd-Wiktionary, English extrathyroid‘to see’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*wéydosWiktionary, English extrathyroid‘seeing’reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*wéidosWiktionary, English extrathyroidreconstructed
  4. Ancient Greekc. 800–300 BCEεἶδοςWiktionary, English extrathyroideîdos
  5. Ancient Greekc. 800–300 BCEθῠρεοειδήςWiktionary, English extrathyroidthŭreoeidḗs‘Shield-shaped’
  6. New LatinmodernthyreoīdēsWiktionary, English extrathyroid
  7. English1500–presentthyroidWiktionary, English extrathyroid
  8. Englishearliest quotation 2015extrathyroidWiktionary, English extrathyroid. Earliest quotation in Wiktionary’s entry: 2015, Jian Zhu et al., Clinicopathological features of recurrent papillary thyroid : “In conclusion, initial surgery approach, tumor size, extrathyroid invasion,…”

Linked words

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

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

through Proto-Indo-European *wéydos ‘seeing’

wise, 47 more

through Proto-Hellenic *wéidos

eidolon, steroidal, 47 more

through Ancient Greek εἶδος

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

through English thyroid

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

Today it means

adj Outside of the thyroid gland

Sources

Sources: Wiktionary, “extrathyroid”. 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- / extrathyroid

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