polyvidone

The story

1. Proto-Indo-European*pleh₁-
2. Proto-Indo-European*polh₁ús
3. Ancient Greekπολῠ́ς (polŭ́s)
4. Englishpoly-
5. Proto-Indo-European*weh₁y-?
6. Proto-Indo-European*wéyh₁ō
7. Proto-Italic*wīnom
8. Latinvīnum
9. Proto-Indo-European*swel-der.?
10. Ancient Greekῡ̔́λη (hū́lē)
11. Englishvinyl
12. Englishpolyvinyl
13. Proto-Indo-European*péh₂wr̥
14. Proto-Hellenic*pāwər
15. Ancient Greekπῦρ (pûr)
16. Ancient Greekπῠρρός (pŭrrhós)
17. GermanPyrro
18. Englishpyrrole
19. Englishpyrrolidine
20. GermanKeton
21. Englishketone
22. Englishpyrrolidone
23. English todaypolyvidone

Blend of polyvinyl + pyrrolidone.