Etymology

protium

P3R1O1T1I1U1M3

Today it means: The lightest and most common isotope of hydrogen, having a single proton and no neutrons: 11H. It is the only stable nuclide with no neutrons. Full definition →

Ancient Greek πρῶτος
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The story

  1. Ancient Greek · derived fromπρῶτος“first”
  2. English todayprotium

From proto- + -ium. From Ancient Greek πρῶτος (prôtos, “first”).

Words from the same roots

Ancient Greekπρῶτος all →

prothonotaryprotoplasmprotopapasprop-propionic acidprotide

Etymology from Wiktionary, CC BY-SA 4.0.