Etymology

nanogram

N1A1N1O1G2R1A1M3

Today it means: An SI unit of mass equal to 10⁻⁹ grams. Symbol: ng Full definition →

English gram ← Latin nānus ← Ancient Greek νᾶνος (nânos)
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The story

  1. Ancient Greekνᾶνος (nânos)
  2. Latinnānus
  3. Englishnano-
  4. Englishgram
  5. English todaynanogram

From nano- + gram.

Etymology from Wiktionary, CC BY-SA 4.0.