Etymology

zettagram

Z10E1T1T1A1G2R1A1M3

Today it means: An SI unit of mass equal to 10²¹ grams. Symbol: Zg Full definition →

English gram ← Ancient Greek ἑπτᾰ́ (heptắ) ← Proto-Hellenic *heptə́
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The story

  1. Proto-Afroasiatic*sṗɣ?
  2. Proto-Semitic*šabʕ-bor.?
  3. Proto-Indo-European*septḿ̥
  4. Proto-Italic*septəm
  5. Latinseptem
  6. Proto-Indo-European*septḿ̥
  7. Proto-Hellenic*heptə́
  8. Ancient Greekἑπτᾰ́ (heptắ)
  9. Englishzetta-
  10. Englishgram
  11. English todayzettagram

From zetta- + gram.

Etymology from Wiktionary, CC BY-SA 4.0.