Etymology

eigenspectrum

E1I1G2E1N1S1P3E1C3T1R1U1M3

Today it means: The set of all eigenvalues of a linear operator. Full definition →

English spectrum ← Latin spectrum ← 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. Latinspeciō
  11. Latinspectrum
  12. Englishspectrum
  13. English todayeigenspectrum

From eigen- + spectrum.

Etymology from Wiktionary, CC BY-SA 4.0.