underglycosylation

The story

1. Proto-Indo-European*h₁én
2. Proto-Indo-European*h₁entér
3. Proto-Indo-European*h₂én
4. Proto-Indo-European*dʰeh₁-?
5. Proto-Indo-European*(H)n̥dʰí
6. Proto-Indo-European*(H)n̥dʰér
7. Proto-Germanic*under
8. Proto-West Germanic*undar
9. Old Englishunder-
10. Middle Englishunder-
11. Englishunder-
12. Proto-Hellenic*dlukús
13. Ancient Greekγλῠκῠ́ς (glŭkŭ́s)
14. Proto-Hellenic*dléukus?
15. Ancient Greekγλεῦκος (gleûkos)
16. Frenchglucose
17. Englishglucosebf.
18. Englishglycose
19. Proto-Indo-European*swel-der.?
20. Ancient Greekῡ̔́λη (hū́lē)
21. Englishglycosyl
22. Englishglycosylation
23. English todayunderglycosylation

From under- + glycosylation.