late 14c., ilik, "pertaining to colic," from Late Latin iliacus, from ileus "severe colic" (see ileus).
Entries linking to iliac
ileus n.
painful intestinal condition, 1706, from Latin ileus "severe colic," from Greek eileos "colic," from eilein "to turn, squeeze," from PIE root *wel- (3) "to turn, revolve."