norsteroid

The story

1. Proto-Indo-European*ǵneh₃-
2. Proto-Indo-European*ǵn̥h₃sḱéti
3. Proto-Hellenic*gignṓskō
4. Ancient Greekγιγνώσκω (gignṓskō)
5. Ancient Greekγνώμων (gnṓmōn)
6. Latinnorma
7. Proto-Indo-European*h₂el-
8. Proto-Indo-European*h₂élisder.?
9. Latinnōrmālis
10. Englishnormal
11. Englishnor-
12. Proto-Indo-European*ǵʰelh₃-
13. Proto-Hellenic*kʰolā́
14. Ancient Greekχολή (kholḗ)
15. Proto-Indo-European*ster-
16. Ancient Greekστερεός (stereós)
17. Frenchcholestérine
18. Frenchcholestéro
19. Englishcholesterol
20. Englishsterol
21. Proto-Indo-European*weyd-
22. Proto-Indo-European*wéydos
23. Proto-Hellenic*wéidos
24. Ancient Greekεἶδος (eîdos)
25. Englishsteroid
26. English todaynorsteroid

From nor- + steroid.