When a baby cries from the pain and discomfort of indigestion, you can describe her as colicky. A colicky baby doesn't get much sleep — and neither do her parents.
While there are different sorts of colic, or abdominal pain, the adjective colicky is most often used to describe human infants. Because babies can't tell you where it hurts, long bouts of crying frequently result in a diagnosis of a colicky baby. Doctors guess that being colicky is a result of intestinal gas or other digestive troubles, and the root of the word is the Greek kolon, "lower intestine."