Etymology

planetology

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Today it means: The study of planets, planetary systems and the solar system. Full definition →

Ancient Greek λόγος (lógos) ← Proto-Hellenic *lógos ← Proto-Indo-European *lóǵos
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The story

  1. Englishplanet
  2. Proto-Indo-European*leǵ-
  3. Proto-Indo-European*lóǵos
  4. Proto-Hellenic*lógos
  5. Ancient Greekλόγος (lógos)
  6. English todayplanetology

From planet + -ology.

Etymology from Wiktionary, CC BY-SA 4.0.