Etymology

nonstop

N1O1N1S1T1O1P3

Today it means: Without stopping; without interruption or break. Full definition →

English stop ← Middle English stoppen ← Old English stoppian
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The story

  1. Proto-Indo-European*né
  2. Proto-Germanic*ne
  3. Proto-Indo-European*ís?
  4. Proto-Indo-European*h₁óynos
  5. Proto-Germanic*ainaz
  6. Proto-Germanic*nainaz
  7. Proto-West Germanic*nain
  8. Old Englishnān
  9. Middle Englishnon
  10. Old Englishnān
  11. Old Englishnān-
  12. Middle Englishnon-
  13. Englishnon-
  14. Proto-West Germanic*stoppōn
  15. Old Englishstoppian
  16. Middle Englishstoppen
  17. Englishstop
  18. English todaynonstop

From non- + stop.

Etymology from Wiktionary, CC BY-SA 4.0.