chitooligosaccharidolytic

The story

1. Ancient Greekχῐτών (khĭtṓn)
2. Latinchitōn
3. Frenchchitine
4. Englishchitin
5. Englishchito-
6. Ancient Greekὀλῐ́γος (olĭ́gos)
7. Englisholigo-
8. Proto-Indo-European*ḱorkeh₂
9. Proto-Indo-Iranian*ćárkaraH
10. Proto-Indo-Aryan*śárkaraH
11. Sanskritशर्क॑रा (śárkarā)
12. Palisakkharā
13. Ancient Greekσάκχαρ (sákkhar)
14. Latinsaccharon
15. Latinsaccharum
16. Englishsaccharo-
17. Proto-Indo-European*dʰeh₁-
18. Englishsaccharide
19. Englisholigosaccharide
20. Englishchitooligosaccharide
21. English todaychitooligosaccharidolytic

From chitooligosaccharide + -o- + -lytic.