Etymology

ametropia

A1M3E1T1R1O1P3I1A1

Today it means: Any of several disorders of the eye (spherical or cylindrical) resulting from faulty refractive ability. Full definition →

Ancient Greek μέτρον (métron) ← Proto-Indo-European *meh₁- ← English a-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Hellenic*ə-
  4. Ancient Greekἀ- (a-)
  5. Englisha-
  6. Proto-Indo-European*med-
  7. Proto-Indo-European*meh₁-
  8. Ancient Greekμέτρον (métron)
  9. English todayametropia

From a- + Ancient Greek μέτρον (métron, “measure”) + English -opia.

Etymology from Wiktionary, CC BY-SA 4.0.