Meaning

noun diagnostic procedure consisting of recording the activity of the heart electronically with a cardiograph (and producing a cardiogram)

originEtymology tree Proto-Indo-European *ḱerd- Proto-Indo-European *ḱḗr Proto-Indo-European *ḱr̥díyeh₂ Proto-Hellenic *kərdíyā Ancient Greek καρδία (kardía)lbor. English cardio- Proto-Indo-European *gerbʰ- Proto-Hellenic *grə́pʰō Ancient Greek γρᾰ́φω (grắphō) Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek γραφή (graphḗ) Ancient Greek -γραφίᾱ (-graphíā)bor. French -graphieder. English…

Etymology from Wiktionary, CC BY-SA 3.0