Etymology

nephridium

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Today it means: A tubular excretory organ in some invertebrates. Full definition →

English nephro- ← Ancient Greek νεφρός (nephrós) ← Proto-Hellenic *nekʷʰrós
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The story

  1. Proto-Indo-European*negʷʰrós
  2. Proto-Hellenic*nekʷʰrós
  3. Ancient Greekνεφρός (nephrós)
  4. Englishnephro-
  5. English todaynephridium

From nephro- + -idium.

Etymology from Wiktionary, CC BY-SA 4.0.