glycosylase

The story

1. Proto-Hellenic*dlukús
2. Ancient Greekγλῠκῠ́ς (glŭkŭ́s)
3. Proto-Hellenic*dléukus?
4. Ancient Greekγλεῦκος (gleûkos)
5. Frenchglucose
6. Englishglucosebf.
7. Englishglycose
8. Proto-Indo-European*swel-der.?
9. Ancient Greekῡ̔́λη (hū́lē)
10. Englishglycosyl
11. Proto-Indo-European*dwóh₁
12. Proto-Indo-European*trísinflu.
13. Proto-Indo-European*dwís
14. Ancient Greekδιά (diá)
15. Ancient Greekδῐᾰ- (dĭă-)
16. Proto-Indo-European*steh₂-
17. Proto-Indo-European*stísteh₂ti
18. Proto-Hellenic*hístāmi
19. Ancient Greekῐ̔́στημῐ (hĭ́stēmĭ)
20. Ancient Greekδῐῐ̈́στημῐ (dĭĭ̈́stēmĭ)
21. Ancient Greekδῐᾰ́στᾰσῐς (dĭắstăsĭs)
22. Englishdiastase
23. English todayglycosylase

From glycosyl + -ase.