Etymology

dia-

Today it means: through, across Full definition →

Ancient Greek δῐᾰ- (dĭă-) ← Proto-Indo-European *dwís
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*trísinflu.
  3. Proto-Indo-European*dwís
  4. Ancient Greekδιά (diá)
  5. Ancient Greekδῐᾰ- (dĭă-)
  6. English todaydia-

From Ancient Greek prefix δια- (dia-), from διά (diá, “through, across, by, over”).

Etymology from Wiktionary, CC BY-SA 4.0.