Where does “superiliac” come from?

superiliac (English) comes from English super, from English super-ego, from German Über-Ich, from German Ich, from Middle High German ich, from Old High German ih, from Proto-West Germanic ik, from Proto-Germanic *ek — I.

Ancestry of “superiliac”, step by step

superiliac traces back through two separate lines of ancestry.

via English super

StepLanguageWordMeaning
1EnglishsuperOf excellent quality, superfine; better than...
2Englishsuper-egoAlternative spelling of superego
3GermanÜber-Ichsuperego
4GermanIchego, the Ich; self, me, him, etc
5Middle High GermanichI
6Old High GermanihI
7Proto-West GermanicikI
8Proto-Germanic*ek
9Proto-Indo-Europeanéǵh₂I

via English Iliac

StepLanguageWordMeaning
1EnglishIliacRelating to ancient Ilium, or Troy
2Frenchiliaqueiliac
3LatinIliacusTrojan, related to the city of Troy
4Latinileintestines, guts
5Ancient Greekεἰλεόςintestinal obstruction, ileus; den, hole;...
6Ancient Greekεἰλέωto assemble; to turn, wind; to press together
7Proto-Indo-EuropeanwēlH-to roll, to undulate
8Proto-Indo-EuropeanwelH-to turn, to wind
Every word from Proto-Indo-European éǵh₂Every word from Proto-Germanic *ekEvery word from Proto-West Germanic ik