Etymology

flaperon

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Today it means: An aircraft control surface at the trailing edge of a wing that acts as an aileron (controlling movement around the longitudinal axis) and a flap (changing the chord line of the wing, thus affecting the angle of attack). Full definition →

English aileron ← French aileron ← Middle French aisle
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The story

  1. Englishflap
  2. Proto-Indo-European*h₂eǵ-?
  3. Proto-Indo-European*h₂eḱs-
  4. Proto-Italic*aksis
  5. Latinaxis
  6. Latin*axla
  7. Latināla
  8. Old Frenchaile
  9. Middle Frenchaisle
  10. Frenchaile
  11. Frenchaileron
  12. Englishaileron
  13. English todayflaperon

Blend of flap + aileron.

Etymology from Wiktionary, CC BY-SA 4.0.