Etymology

zettabyte

Z10E1T1T1A1B3Y4T1E1

Today it means: One sextillion (10²¹, or 1,000,000,000,000,000,000,000) bytes or 1,000 exabytes. Full definition →

English byte ← Middle English biten ← Old English bītan
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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. Proto-Indo-European*bʰeyd-
  11. Proto-Indo-European*bʰéydt
  12. Proto-Germanic*bītaną
  13. Proto-West Germanic*bītan
  14. Old Englishbītan
  15. Middle Englishbiten
  16. Englishbite
  17. Englishbyte
  18. English todayzettabyte

From zetta- + byte.

Etymology from Wiktionary, CC BY-SA 4.0.