chemomechanically

The story

1. Proto-Indo-European*ǵʰew-
2. Ancient Greekχῠ́μᾰ (khŭ́mă)
3. Ancient Greekχυμείᾱ (khumeíā)
4. Arabicالْكِيمِيَاء (al-kīmiyāʔ)
5. Medieval Latinalchēmia
6. Ancient Greekχυμείᾱ (khumeíā)influ.
7. New Latinchēmīa
8. Englishchemo-
9. Proto-Indo-European*megʰ-der.?
10. Ancient Greekμηχανή (mēkhanḗ)
11. Ancient Greekμηχανικός (mēkhanikós)
12. Latinmēchanicus
13. Old Frenchmecanique
14. Middle Englishmechanic
15. Proto-Indo-European*h₂el-
16. Proto-Indo-European*h₂élisder.?
17. Middle Englishmechanical
18. Englishmechanical
19. Proto-Indo-European*leyg-
20. Proto-Germanic*līką
21. Englishmechanically
22. English todaychemomechanically

From chemo- + mechanically.