Etymology

autocorrelator

A1U1T1O1C3O1R1R1E1L1A1T1O1R1

Today it means: A device that modifies a signal with a delayed copy of itself in order to detect any periodic signal hidden in the noise Full definition →

English correlator ← Ancient Greek αὐτο- (auto-) ← Proto-Indo-European *h₂ew
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The story

  1. Proto-Hellenic*autós
  2. Proto-Indo-European*h₂ew
  3. Ancient Greekαὖ (aû)
  4. Ancient Greekτόν (tón)
  5. Ancient Greekαὐτός (autós)
  6. Ancient Greekαὐτο- (auto-)
  7. Englishauto-
  8. Englishcorrelator
  9. English todayautocorrelator

From auto- + correlator.

Etymology from Wiktionary, CC BY-SA 4.0.