Etymology

ultrafast

U1L1T1R1A1F4A1S1T1

Today it means: Very fast, or of very short duration; especially concerning events that take place in femtosecond or picosecond timescales. Full definition →

English fast ← Middle English fast ← Old English fæst
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Englishultra-
  2. Proto-Germanic*fastuz
  3. Proto-West Germanic*fast
  4. Old Englishfæst
  5. Middle Englishfast
  6. Englishfast
  7. English todayultrafast

From ultra- + fast.

Etymology from Wiktionary, CC BY-SA 4.0.