English
euthyroid
Euthyroid comes from Ancient Greek θῠρεοειδής ‘Shield-shaped’, from Proto-Indo-European *wéydos ‘seeing’, and ultimately from *weyd- ‘to see’.
- Proto-Indo-Europeanc. 4500–2500 BCE*weyd-‘to see’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*wéydos‘seeing’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*wéidosreconstructed
- Ancient Greekc. 800–300 BCEεἶδοςeîdos
- Ancient Greek, derivedc. 800–300 BCEθῠρεοειδήςthŭreoeidḗs‘Shield-shaped’
- New Latinmodernthyreoīdēs
- English1500–presentthyroid
- Englishtodayeuthyroid
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*weyd-‘to see’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*wéydos‘seeing’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*wéidosreconstructed
- Ancient Greekc. 800–300 BCEεἶδοςeîdos
- Ancient Greek, derivedc. 800–300 BCEθῠρεοειδήςthŭreoeidḗs‘Shield-shaped’
- New Latinmodernthyreoīdēs
- English1500–presentthyroid
- Englishtodayeuthyroid
Proto-Indo-European *h₁su- ‘good’
Proto-Hellenic *ehu- ‘good’
Ancient Greek ἐΰς ‘good, brave, noble’
Ancient Greek εὖ ‘well, good’
English eu-
Proto-Indo-European *dʰwer- ‘door’
…
Ancient Greek θῠ́ρᾱ ‘door’
Ancient Greek θῠρεός ‘an oblong shield’
Ancient Greek θῠρεοειδής ‘shield-shaped’
New Latin thyreoīdēs ‘Shaped like a shield’
English thyroid
The story
Coined between 1920 and 1925 from Greek eu- + thyroid.
Linked words
through Proto-Indo-European *weyd- ‘to see’
story, guy, video, idea, review, visit, evidence, advice, interview, provide, 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, twit, vide, 104 more
through Proto-Indo-European *wéydos ‘seeing’
through Proto-Hellenic *wéidos
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 Having normal thyroid function.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *weyd- / euthyroid