Etymology

thermoptometry

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Today it means: The measurement of the optical properties of a material as it is heated in a controlled manner. Full definition →

English opto- ← Ancient Greek ὀπτός (optós) ← Proto-Hellenic *kʷʰermós
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The story

  1. Proto-Indo-European*gʷʰer-
  2. Proto-Indo-European*gʷʰermos
  3. Proto-Hellenic*kʷʰermós
  4. Ancient Greekθερμός (thermós)
  5. Englishthermo-
  6. Ancient Greekὀπτός (optós)
  7. Englishopto-
  8. English todaythermoptometry

From thermo- + opto- + -metry.

Etymology from Wiktionary, CC BY-SA 4.0.