Etymology

petabyte

P3E1T1A1B3Y4T1E1

Today it means: One quadrillion (10¹⁵, or 1,000,000,000,000,000) bytes or 1,000 terabytes. Full definition →

English byte ← Middle English biten ← Old English bītan
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The story

  1. Englishpeta-
  2. Proto-Indo-European*bʰeyd-
  3. Proto-Indo-European*bʰéydt
  4. Proto-Germanic*bītaną
  5. Proto-West Germanic*bītan
  6. Old Englishbītan
  7. Middle Englishbiten
  8. Englishbite
  9. Englishbyte
  10. English todaypetabyte

From peta- + byte.

Etymology from Wiktionary, CC BY-SA 4.0.