lysophosphatidylserine

The story

1. Proto-Indo-European*lewh₁-
2. Ancient Greekλύω (lúō)
3. Ancient Greekλῠ́σῐς (lŭ́sĭs)
4. Englishlyso-
5. Proto-Indo-European*bʰeh₂-
6. Proto-Indo-European*bʰéh₂os
7. Proto-Hellenic*pʰáwos
8. Ancient Greekφᾰ́ος (phắos)
9. Ancient Greekφῶς (phôs)
10. Proto-Indo-European*bʰer-
11. Proto-Indo-European*bʰéreti
12. Proto-Hellenic*pʰérō
13. Ancient Greekφέρω (phérō)
14. Ancient Greekφωσφόρος (phōsphóros)
15. Latinphōsphorus
16. Frenchphosphore
17. Frenchphosphate
18. Englishphosphate
19. Proto-Indo-European*dʰeh₁-
20. Englishphosphatide
21. Englishphosphatidate
22. Proto-Indo-European*swel-der.?
23. Ancient Greekῡ̔́λη (hū́lē)
24. Englishphosphatidyl
25. Old Chinese絲 (*sə)der.?
26. Ancient Greekσήρ (sḗr)
27. Ancient Greekσηρῐκός (sērĭkós)
28. Latinsēricus
29. Englishserine
30. Englishphosphatidylserine
31. English todaylysophosphatidylserine

From lyso- + phosphatidylserine.