Origin of carotid
- French carotide from Greek karōtides carotid arteries from karoun to stupefy (because compression of these arteries causes loss of consciousness) ker-1 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Latin caros or Ancient Greek κάρος (karos, “sleep, stupor”). From the fact that the carotid artery supplies blood to the brain, and interruption of this flow causes loss of consciousness.