Etymology

gastrointestinal

Today it means: Of or pertaining to the stomach and intestines, and thus to digestion. Full definition →

English intestinal ← Ancient Greek γᾰστήρ (găstḗr) ← Proto-Indo-European *gres-
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The story

  1. Proto-Indo-European*gres-
  2. Ancient Greekγρᾰ́ω (grắō)
  3. Ancient Greekγᾰστήρ (găstḗr)
  4. Englishgastro-
  5. Englishintestinal
  6. English todaygastrointestinal

From gastro- + intestinal.

Etymology from Wiktionary, CC BY-SA 4.0.