Did You Know?
The basis of the word "lily-livered" lies in an old belief. Years ago, people thought that health and temperament were the products of a balance or imbalance of four bodily fluids, or humors: blood, phlegm, black bile, and yellow bile. It was believed that a deficiency of yellow bile, or choler, the humor that governed anger, spirit, and courage, would leave a person’s liver colorless or white. Someone with this deficiency, and so white-livered, would be spiritless and a coward. "Lily-livered" and "white-livered" have been used synonymously since the 16th century, but "lily-livered" is now the more common expression, probably because of its alliteration.