Etymology

astrophobia

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Today it means: A fear of stars and celestial space. Full definition →

English astro- ← Ancient Greek ᾰ̓́στρον (ắstron) ← Proto-Hellenic *astḗr
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The story

  1. Proto-Indo-European*h₂eHs-
  2. Proto-Indo-European*h₂stḗr
  3. Proto-Hellenic*astḗr
  4. Ancient Greekἀστήρ (astḗr)
  5. Ancient Greekᾰ̓́στρον (ắstron)
  6. Englishastro-
  7. English todayastrophobia

From astro- + -phobia.

Etymology from Wiktionary, CC BY-SA 4.0.