The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Hellenic*hupér
- Ancient Greekῠ̔πέρ (hŭpér)
- Ancient Greekῠ̔περ- (hŭper-)
- Englishhyper-
- Englishconscientious
- English todayhyperconscientious
From hyper- + conscientious.
Etymology from Wiktionary, CC BY-SA 4.0.