English
thyro-
Thyro- comes from New Latin thyreoīdēs, from Ancient Greek θῠρεοειδής ‘Shield-shaped’, and ultimately from Proto-Indo-European *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
- Englishtodaythyro-
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
- Englishtodaythyro-
Linked words
through Proto-Indo-European *weyd- ‘to see’
story, video, guy, idea, evidence, review, visit, provide, advice, interview, guide, vision, witness, historic, wisdom, visa, advise, invisible, evident, wit, wizard, historian, visibility, vista, wisely, witty, revise, guise, prudent, envious, jurisprudence, unwise, prudence, revue, druid, vide, avis, purview, improvise, twit, 107 more
through Proto-Indo-European *wéydos ‘seeing’
through Proto-Hellenic *wéidos
through Ancient Greek εἶδος
idol, tabloid, steroid, idyll, trapezoid, colloid, sigmoid, hyoid, 52 more
through English thyroid
Today it means
prefix Thyroid.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *weyd- / thyro-