polyoxybenzylmethylenglycolanhydride

The story

1. Proto-Indo-European*pleh₁-
2. Proto-Indo-European*polh₁ús
3. Ancient Greekπολῠ́ς (polŭ́s)
4. Englishpoly-
5. Proto-Indo-European*h₂eḱ-der.?
6. Ancient Greekὀξῠ́ς (oxŭ́s)
7. Englishoxy-
8. Arabicلُبَان (lubān)
9. Proto-Indo-European*yew-
10. Proto-Indo-European*yéwos
11. Proto-Indo-Iranian*yáwas
12. Sanskritयव (yava)bor.?
13. Proto-Austronesian*zawa
14. Proto-Malayo-Polynesian*zawader.?
15. Old Javanesejawa
16. Old JavaneseJawi
17. Javaneseꦗꦮꦶ (jawi)
18. Arabicجَاوَة (jāwa)
19. Arabicـِيّ (-iyy)
20. Arabicجَاوِيّ (jāwiyy)
21. Arabicلُبَان جَاوِيّ (lubān jāwiyy)
22. Catalanbenjuí
23. Middle Frenchbenjoin
24. Englishbenzoin
25. Englishbenzo-
26. Englishbenz-
27. Proto-Indo-European*swel-der.?
28. Ancient Greekῡ̔́λη (hū́lē)
29. Englishbenzyl
30. Frenchméthylène
31. Englishmethylene
32. Proto-Hellenic*dlukús
33. Ancient Greekγλῠκῠ́ς (glŭkŭ́s)
34. Akkadian𒎎𒋆𒁉𒍣𒁕 (guḫlum)
35. Aramaicכוחלא (kuḥlā)
36. Arabicكُحْل (kuḥl)
37. Andalusian Arabicكُحُول (kuḥūl)
38. Medieval Latinalcoho
39. Middle Englishalcofol
40. Englishalcohol
41. Englishglycol
42. Proto-Indo-European*né
43. Proto-Indo-European*n̥-
44. Proto-Hellenic*ə-
45. Ancient Greekᾰ̓- (ă-)
46. Ancient Greekἀν- (an-)
47. Englishan-
48. Proto-Indo-European*wed-
49. Proto-Indo-European*wódr̥
50. Proto-Hellenic*údōr
51. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
52. Ancient Greekῠ̔δρο- (hŭdro-)
53. Englishhydro-
54. Proto-Indo-European*dʰeh₁-
55. Englishhydride
56. Englishanhydride
57. English todaypolyoxybenzylmethylenglycolanhydride

From poly- + oxy- + benzyl + methylene + glycol + anhydride.