Etymology

rheocardiography

Today it means: The measurement of hemodynamic parameters of the heart (such as stroke volume and cardiac output) by passing a high-frequency current of small amplitude through the chest and recording changes in electrical resistance. Full definition →

English cardiography ← Ancient Greek γραφή (graphḗ) ← Proto-Hellenic *grə́pʰō
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The story

  1. Proto-Indo-European*ser-?
  2. Proto-Indo-European*srew-
  3. Proto-Indo-European*sréweti
  4. Proto-Hellenic*hréwō
  5. Ancient Greekῥέω (rhéō)
  6. Englishrheo-
  7. Proto-Indo-European*ḱerd-
  8. Proto-Indo-European*ḱḗr
  9. Proto-Indo-European*ḱr̥díyeh₂
  10. Proto-Hellenic*kərdíyā
  11. Ancient Greekκαρδία (kardía)
  12. Englishcardio-
  13. Proto-Indo-European*gerbʰ-
  14. Proto-Hellenic*grə́pʰō
  15. Ancient Greekγρᾰ́φω (grắphō)
  16. Ancient Greekγραφή (graphḗ)
  17. Englishcardiography
  18. English todayrheocardiography

From rheo- + cardiography.

Etymology from Wiktionary, CC BY-SA 4.0.