The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Italic*super
- Latinsuper
- Latinsuper-
- Englishsuper-
- Englishunleaded
- English todaysuperunleaded
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: of unleaded petrol, that has a higher than normal octane number due to the addition of aromatic hydrocarbons Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.