Etymology

trackwheel

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Today it means: A small wheel, incorporated into a mouse or smartphone, that controls scrolling. Full definition →

English wheel ← Middle English whel ← Old English hwēol
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The story

  1. Old Frenchtrac
  2. Middle Englishtrak /tracke
  3. Englishtrack
  4. Proto-Indo-European*kʷelh₁-redup.
  5. Proto-Indo-European*kʷekʷléh₂
  6. Proto-Germanic*hweulō
  7. Old Englishhwēol
  8. Middle Englishwhel
  9. Englishwheel
  10. English todaytrackwheel

From track + wheel.

Etymology from Wiktionary, CC BY-SA 4.0.