The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Italic*super
- Latinsuper
- Latinsuper-
- Englishsuper-
- Englishconduct
- Englishconductive
- Englishconductivity
- English todaysuperconductivity
From super- + conductivity.
Etymology from Wiktionary, CC BY-SA 4.0.