hyperadherent

The story

1. Proto-Indo-European*úp
2. Proto-Indo-European*upér
3. Proto-Hellenic*hupér
4. Ancient Greekῠ̔πέρ (hŭpér)
5. Ancient Greekῠ̔περ- (hŭper-)
6. Englishhyper-
7. Proto-Indo-European*h₂éd
8. Proto-Italic*ad
9. Proto-Italic*ad-
10. Latinad-
11. Latinhaereō
12. Latinadhaereō
13. Latinadhaerēns
14. Old Frenchadherent
15. Middle Englishadherent
16. Englishadherent
17. English todayhyperadherent

From hyper- + adherent.