Where does “superdisk” come from?

superdisk (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.

superdisk (English): A closed curve, of form y = (1-xn)1/n (where n > 2), having properties intermediate between those of a circle and a square

Definitions

  1. A closed curve, of form y = (1-xn)1/n (where n > 2), having properties intermediate between those of a circle and a square

Ancestry of “superdisk”, step by step

superdisk 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 disk

StepLanguageWordMeaning
1EnglishdiskA thin, flat, circular plate or similar object;...
2Ancient Greekδίσκοςquoit, disc; dish, trencher; round mirror
3Ancient Greekδικέωto hurl, to launch
Every word from Proto-Indo-European éǵh₂Every word from Proto-Germanic *ekEvery word from Proto-West Germanic ik