carotid
Concise Oxford English Dictionary © 2008 Oxford University Press:
carotid /kəˈrɒtɪd/
▶adjective Anatomy relating to or denoting the two main arteries carrying blood to the head and neck.
– origin C17: from Fr. carotide or mod. L. carotides, from Gk karōtides, pl. of karōtis ‘drowsiness’, from karoun ‘stupefy’ (because compression of these arteries was thought to cause stupor).
'carotid' also found in these Oxford entries:

