The story
- Frenchélectro-
- Ancient Greekἤλεκτρον (ḗlektron)
- Latinēlectrum
- Latinelectro-
- Englishelectro-
- Proto-Indo-European*ḱerd-
- Proto-Indo-European*ḱḗr
- Proto-Indo-European*ḱr̥díyeh₂
- Proto-Hellenic*kərdíyā
- Ancient Greekκαρδία (kardía)
- Englishcardio-
- Proto-Indo-European*gerbʰ-
- Proto-Hellenic*grə́pʰō
- Ancient Greekγρᾰ́φω (grắphō)
- Ancient Greekγραφή (graphḗ)
- Englishcardiography
- Englishelectrocardiography
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- English todayelectrocardiographical
From electrocardiography + -ical.
Etymology from Wiktionary, CC BY-SA 4.0.