Etymology

obstreperous

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Today it means: Attended by, or making, a loud and tumultuous noise; boisterous. Full definition →

Latin obstreperus ← Proto-Italic *op ← Proto-Indo-European *h₁óp(i)
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The story

  1. Proto-Indo-European*h₁ep-
  2. Proto-Indo-European*h₁éps
  3. Proto-Indo-European*h₁óp(i)
  4. Proto-Italic*op
  5. Latinob
  6. Latinob-
  7. Latinstrepō
  8. Latinobstrepō
  9. Latinobstreperus
  10. English todayobstreperous

Borrowed from Latin obstreperus, first attested circa 17th c. Compare obstropulous.

Etymology from Wiktionary, CC BY-SA 4.0.