1660s, from Latin coeliacus, from Greek koiliakos "pertaining to the bowels," also "pain in the bowels," from koilia "bowels, abdominal cavity, intestines, tripe" from koilos "hollow," from PIE root *keue- "to swell; vault, hole" (see cumulus).
coeliac coe·li·ac (sē'lē-āk')
Variant of celiac.
celiac ce·li·ac or coe·li·ac (sē'lē-āk')
Of or relating to the abdomen or abdominal cavity.