English
superdisk
From super- + disk.
Ancient Greek δικεῖν ‘to cast’
Ancient Greek δίσκος ‘a circular plate suited for hurling’
English disk
Today it means
noun A closed curve, of form y = (1-xⁿ)^(1/n) (where n > 2), having properties intermediate between those of a circle and a square
Sources
Sources: Wiktionary, “superdisk”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / superdisk