Etymology

ineffectual

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Today it means: Unable or insufficient to produce effect. Full definition →

English effectual ← Middle English in- ← Latin in-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Italic*n̥-
  4. Latinin-
  5. Middle Englishin-
  6. Englishin-
  7. Englisheffectual
  8. English todayineffectual

From in- + effectual.

Etymology from Wiktionary, CC BY-SA 4.0.