Where does “ilioischiatic” come from?

ilioischiatic (English) comes from English ischiatic, from French ischiatique — ischiatic.

Ancestry of “ilioischiatic”, step by step

StepLanguageWordMeaning
1EnglishischiaticOf or pertaining to the ischium
2Frenchischiatiqueischiatic
Every word from French ischiatique →Every word from English ischiatic →