Etymology

bitcoin

bit·coin
B3I1T1C3O1I1N1

Today it means: A unit of the bitcoin (proper noun proper noun sense 1) cryptocurrency. Full definition →

English coin ← Middle English coyn ← Old French coin
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*trísinflu.
  3. Proto-Indo-European*dwís
  4. Proto-Italic*dwis
  5. Proto-Italic*dwiznos
  6. Latinbīnus
  7. Late Latinbīnāriu
  8. Middle Englishbinarie
  9. Englishbinary
  10. Proto-Indo-European*deyḱ-der.?
  11. Latindigitus
  12. Middle Englishdigit
  13. Englishdigit
  14. Englishbinary digitabbr.
  15. Englishbitinflu.
  16. Englishbit
  17. Latincuneus
  18. Old Frenchcoin
  19. Middle Englishcoyn
  20. Englishcoin
  21. English todaybitcoin

From bit (“binary digit”) + coin, coined by Satoshi Nakamoto, believed to be a pseudonym for one or more people, in the domain name bitcoin.org registered on 18 August 2008; and in the title of the white paper “Bitcoin: A Peer-to-Peer Electronic Cash System”, a link to which was posted on the cryptography mailing list metzdowd.com on October 31, 2008: see the quotation.

First known use, by meaning

  • from 2008 A decentralized cryptocurrency using blockchain technology.

Etymology from Wiktionary, CC BY-SA 4.0.