Etymology

extraretinal

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Today it means: Outside of the retina. Full definition →

English retinal ← Latin extrā ← Proto-Italic *eksteros
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The story

  1. Proto-Indo-European*h₁éǵʰs
  2. Proto-Indo-European*h₁eǵʰsteros
  3. Proto-Italic*eksteros
  4. Latinexter
  5. Latinextrā
  6. Englishextra-
  7. Englishretinal
  8. English todayextraretinal

From extra- + retinal.

Etymology from Wiktionary, CC BY-SA 4.0.