Etymology

hemianopsia

H4E1M3I1A1N1O1P3S1I1A1

Today it means: Blindness in one half of the field of vision of either or both eyes. Full definition →

English an- ← Ancient Greek ἀν- (an-) ← Proto-Hellenic *ə-
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The story

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sēmi
  3. Proto-Hellenic[Term?]
  4. Ancient Greekἡμῐ- (hēmĭ-)
  5. Englishhemi-
  6. Proto-Indo-European*né
  7. Proto-Indo-European*n̥-
  8. Proto-Hellenic*ə-
  9. Ancient Greekᾰ̓- (ă-)
  10. Ancient Greekἀν- (an-)
  11. Englishan-
  12. English todayhemianopsia

From hemi- + an- + -opsia.

Etymology from Wiktionary, CC BY-SA 4.0.