furethidine

The story

1. Latinfurfur
2. Akkadian𒎎𒋆𒁉𒍣𒁕 (guḫlum)
3. Aramaicכוחלא (kuḥlā)
4. Arabicكُحْل (kuḥl)
5. Andalusian Arabicكُحُول (kuḥūl)
6. Latinalcohol
7. Proto-Indo-European*de
8. Proto-Indo-European*déh₁
9. Proto-Italic*dē
10. Latindē
11. Latinde-
12. Proto-Indo-European*wed-
13. Proto-Indo-European*wódr̥
14. Proto-Hellenic*údōr
15. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
16. Ancient Greekῠ̔δρο- (hŭdro-)
17. GermanAldehyd
18. Englishaldehydeclip.
19. Englishfurfural
20. Proto-Indo-European*swel-der.?
21. Ancient Greekῡ̔́λη (hū́lē)
22. Englishfur(furyl)
23. Ancient Greekπέπερῐ (péperĭ)
24. Latinpiper
25. Englishpiperidine
26. Proto-Indo-European*h₂eydʰ-
27. Proto-Hellenic*áitʰō
28. Ancient Greekαἴθω (aíthō)
29. Ancient Greekᾱ̓ήρ (āḗr)influ.?
30. Ancient Greekαἰθήρ (aithḗr)
31. Latinaethēr
32. GermanÄther
33. GermanEther
34. Ancient Greekῡ̔́λη (hū́lē)
35. GermanEthy
36. Englishethyl
37. Englishpethidine
38. English todayfurethidine

From fur(furyl) + -ethidine (“pethidine derivative”).