Etymology

diarrheal

D2I1A1R1R1H4E1A1L1

Today it means: That causes, or is associated with diarrhea. Full definition →

Proto-Indo-European *h₂élisder.? ← English diarrhea ← Middle English diaria
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The story

  1. Middle Englishdiaria
  2. Englishdiarrhea
  3. Proto-Indo-European*h₂el-
  4. Proto-Indo-European*h₂élisder.?
  5. English todaydiarrheal

From diarrhea + -al.

Etymology from Wiktionary, CC BY-SA 4.0.