aorta (n.) Look up aorta at Dictionary.com
1570s, from Medieval Latin aorta, from Greek aorte, term applied by Aristotle to the great artery of the heart, literally "what is hung up," from aeirein "to lift, heave, raise" (related to the second element in meteor), which is of uncertain origin, possibly from a PIE root *wer- (2) "raise, lift, hold suspended." Used earlier by Hippocrates of the bronchial tubes. Related: Aortal; aortic.