Etymology

picogram

P3I1C3O1G2R1A1M3

Today it means: An SI unit of mass equal to 10⁻¹² grams. Symbol: pg Full definition →

English gram ← Spanish pico ← Old Spanish bico
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The story

  1. Proto-Celtic*bekkos
  2. Gaulish*bekkosbor.?
  3. Latinbeccus
  4. Old Spanishbico
  5. Spanishpico
  6. Englishpico-
  7. Englishgram
  8. English todaypicogram

From pico- + gram.

Etymology from Wiktionary, CC BY-SA 4.0.