Where does “supercontroversial” come from?

supercontroversial (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 “supercontroversial”, step by step

supercontroversial 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 controversial

StepLanguageWordMeaning
1EnglishcontroversialArousing controversy—a debate or discussion of...
2Latincontrōversiaa quarrel, dispute, debate
3Latincontrōversuscontroversial, debatable, disputed
4Latinversusturned, changed, having been turned; towards,...
5Latinvertōto turn, turn oneself, direct one's way, to turn about, turn around, revolve
6Proto-Italicwertōto turn
7Proto-Indo-Europeanwert-to turn, to rotate
8Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel
Every word from Proto-Indo-European éǵh₂