The story
- Proto-Indo-European*me
- Proto-Indo-European*dʰeh₁-?
- Proto-Indo-European*médʰi
- Proto-Indo-European*médʰyos
- Proto-Italic*meðios
- Latinmedius
- Proto-Indo-European*h₂eḱ-
- Proto-Indo-European*h₂eḱrós
- Proto-Indo-European*h₂óḱris
- Proto-Italic*okris
- Latinocris?
- Latinmediocri
- Frenchmédiocre
- English todaymediocre
Borrowed from French médiocre, from Classical Latin mediocris (“in a middle state”, “of middle size”, “middling”, “moderate”, “ordinary”, from medius (“middle”) + ocris (“rugged mountain”)); compare mediocrely and mediocrity.
Etymology from Wiktionary, CC BY-SA 4.0.