Etymology

gyrochronology

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Today it means: A method of estimating the age of a star by measuring its rotation rate Full definition →

English chronology ← Ancient Greek λόγος (lógos) ← Proto-Hellenic *lógos
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The story

  1. Englishgyro-
  2. Ancient Greekχρόνος (khrónos)
  3. Englishchrono-
  4. Proto-Indo-European*leǵ-
  5. Proto-Indo-European*lóǵos
  6. Proto-Hellenic*lógos
  7. Ancient Greekλόγος (lógos)
  8. Englishchronology
  9. English todaygyrochronology

From gyro- + chronology.

Etymology from Wiktionary, CC BY-SA 4.0.