painful intestinal condition, 1706, from Latin ileus "severe colic," from Greek ileos "colic," from eilein "to turn, squeeze," from PIE *wel- "to turn, roll" (see volvox).
ileus il·e·us (ĭl'ē-əs)
n.
Intestinal obstruction causing severe colicky pain, vomiting, constipation, and often fever and dehydration.