Jaundice is a yellow color of the skin and eye. It arises from coloring matter in the skin which the liver, whose province it is, has failed to remove. As one whose liver is out of order is not likely to look on the world with a pleased eye, the term "jaundiced" has been applied proverbially to one who is out of sorts.
All seems infected that th' infected spy,
As all looks yellow to the jaundic'd eye.
—Pope, Essay on Criticism.