English
electrocardiography
From electro- + cardiography.
A compound of electro- + cardio- + -graphy + cardiography
Proto-Indo-European *gerbʰ- ‘to carve’
Proto-Hellenic *grə́pʰō ‘to scratch, cut or carve into’
Ancient Greek γρᾰ́φω ‘to scratch, cut into’
Ancient Greek γραφή ‘drawing’
English cardiography
Today it means
noun The science and practice of the creation and diagnostic interpretation of electrocardiograms.
Language periods are conventional ranges, not dates for this word.
Etymograph / electrocardiography