English
thyrotropin
Thyrotropin comes from Ancient Greek τροπῐκός ‘of or pertaining to a turn or change’, from τροπή ‘a turning’, and ultimately from Proto-Indo-European *trep- ‘to turn’.
- Proto-Indo-Europeanc. 4500–2500 BCE*trep-‘to turn’reconstructed
- Ancient Greekc. 800–300 BCEτρέπωtrépō‘turn, divert, turn back, rout an enemy’
- Ancient Greek, derivedc. 800–300 BCEτροπήtropḗ‘a turning’
- Ancient Greek, derivedc. 800–300 BCEτροπῐκόςtropĭkós‘of or pertaining to a turn or change’
- Englishtodaythyrotropin
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*trep-‘to turn’reconstructed
- Ancient Greekc. 800–300 BCEτρέπωtrépō‘turn, divert, turn back, rout an enemy’
- Ancient Greek, derivedc. 800–300 BCEτροπήtropḗ‘a turning’
- Ancient Greek, derivedc. 800–300 BCEτροπῐκόςtropĭkós‘of or pertaining to a turn or change’
- Englishtodaythyrotropin
A compound of thyro- + -tropin
Proto-Indo-European *weyd- ‘to see’
…
Ancient Greek εἶδος
Ancient Greek θῠρεοειδής ‘Shield-shaped’
New Latin thyreoīdēs
English thyroid
English thyro-
Linked words
through Proto-Indo-European *trep- ‘to turn’
thrive, intrepid, trepidation, turpitude, 30 more
through Ancient Greek τρέπω ‘turn, divert, turn back, rout an enemy’
trope, troubadour, contrive, 23 more
through Ancient Greek τροπή ‘a turning’
Today it means
noun A thyroid-stimulating glycoprotein hormone secreted by the pituitary gland.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *trep- / thyrotropin