Etymology

unenthusiastic

U1N1E1N1T1H4U1S1I1A1S1T1I1C3

Today it means: Without enthusiasm; unexcited. Full definition →

English enthusiastic ← Middle English un- ← Old English un-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Germanic*un-
  4. Proto-West Germanic*un-
  5. Old Englishun-
  6. Middle Englishun-
  7. Englishun-
  8. Englishenthusiastic
  9. English todayunenthusiastic

From un- + enthusiastic.

Etymology from Wiktionary, CC BY-SA 4.0.