chlorothiazide

The story

1. Proto-Indo-European*ǵʰelh₃-
2. Proto-Indo-European*ǵʰl̥h₃rós
3. Proto-Hellenic*kʰlōrós
4. Ancient Greekχλωρός (khlōrós)
5. Englishchloro-
6. Proto-Indo-European*dʰewh₂-der.?
7. Ancient Greekθέειον (théeion)
8. Ancient Greekθεῖον (theîon)
9. Englishthio-
10. Proto-Indo-European*né
11. Proto-Indo-European*n̥-
12. Proto-Hellenic*ə-
13. Ancient Greekᾰ̓- (ă-)
14. Proto-Indo-European*gʷeyh₃-
15. Proto-Indo-European*gʷih₃wós
16. Proto-Indo-European*gʷíh₃weti
17. Proto-Hellenic*gʷyṓw-ō
18. Proto-Hellenic*d͏̌ṓwō
19. Ancient Greekζώω (zṓō)
20. Ancient Greekζῶ (zô)
21. Ancient Greekζωή (zōḗ)
22. Frenchazote
23. Englishaz(ote)
24. Englishazine
25. Proto-Indo-European*h₂eḱ-der.?
26. Ancient Greekὀξύς (oxús)
27. Proto-Indo-European*ǵenh₁-
28. Proto-Indo-European*ǵénh₁os
29. Proto-Hellenic*génos
30. Ancient Greekγένος (génos)
31. Frenchoxygène
32. Proto-Indo-European*h₂eḱ-
33. Proto-Indo-European*h₂eḱéh₁yeti
34. Proto-Italic*akēō
35. Latinaceō
36. Proto-Indo-European*dʰeh₁-
37. Latinacidu
38. Frenchacide
39. Frenchoxide
40. Englishoxide
41. Arabicلُبَان (lubān)
42. Proto-Indo-European*yew-
43. Proto-Indo-European*yéwos
44. Proto-Indo-Iranian*yáwas
45. Sanskritयव (yava)bor.?
46. Proto-Austronesian*zawa
47. Proto-Malayo-Polynesian*zawader.?
48. Old Javanesejawa
49. Old JavaneseJawi
50. Javaneseꦗꦮꦶ (jawi)
51. Arabicجَاوَة (jāwa)
52. Arabicـِيّ (-iyy)
53. Arabicجَاوِيّ (jāwiyy)
54. Arabicلُبَان جَاوِيّ (lubān jāwiyy)
55. Catalanbenjuí
56. Middle Frenchbenjoin
57. Englishbenzoin
58. Englishbenzo-
59. Englishthia-
60. Proto-Indo-European*dwóh₁
61. Proto-Indo-European*dwi-
62. Proto-Hellenic*dwi-
63. Ancient Greekδῐ- (dĭ-)
64. Latindi-
65. Englishdi-
66. Englishazote
67. Englishdiazine
68. Englishthiadiazine
69. Englishbenzothiadiazine
70. Englishdi-
71. Englishoxide
72. Englishdioxide
73. Englishthiazide
74. English todaychlorothiazide

From chloro- + -thiazide.