Etymology

eigenfrequency

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Today it means: Natural frequency: the frequency at which a system tends to oscillate in the absence of any driving or damping force. Full definition →

English frequency ← German eigen ← Middle High German eigen
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The story

  1. Proto-Indo-European*h₂eyḱ-
  2. Proto-Indo-European*h₂eh₂óyḱe
  3. Proto-Germanic*aiganą
  4. Proto-Germanic*aiganaz
  5. Proto-West Germanic*aigan
  6. Old High Germaneigan
  7. Middle High Germaneigen
  8. Germaneigen
  9. Englisheigen-
  10. Englishfrequency
  11. English todayeigenfrequency

From eigen- + frequency.

Etymology from Wiktionary, CC BY-SA 4.0.