cardi/o

cardi/o means heart (Greek).

"CAR-dee-oh." Coach: "When you hear cardi, put the heart at the center of the word."

Examples: cardiac, cardiology, cardiologist, cardiomegaly, cardiomyopathy.

Also: cardiovascular, cardiogenic, cardiopulmonary, electrocardiogram, echocardiogram, endocarditis, pericarditis, tachycardia, bradycardia.