chemosynthetic

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*ḱe?
10. Proto-Indo-European*ḱómder.?
11. Proto-Indo-European*sem-der.?
12. Proto-Hellenic*ksún
13. Ancient Greekσύν (sún)
14. Ancient Greekσυν- (sun-)
15. Proto-Indo-European*dʰeh₁-
16. Proto-Indo-European*dʰédʰeh₁ti
17. Ancient Greekτίθημι (títhēmi)
18. Ancient Greekσῠντῐ́θημῐ (sŭntĭ́thēmĭ)
19. Ancient Greekσύνθεσις (súnthesis)
20. Ancient Greekσυνθετικός (sunthetikós)
21. Frenchsynthétique
22. Englishsynthetic
23. English todaychemosynthetic

From chemo- + synthetic.