undemoted

The story

1. Proto-Indo-European*né
2. Proto-Indo-European*n̥-
3. Proto-Germanic*un-
4. Proto-West Germanic*un-
5. Old Englishun-
6. Middle Englishun-
7. Englishun-
8. Proto-Indo-European*de
9. Proto-Indo-European*déh₁
10. Proto-Italic*dē
11. Latindē
12. Latindē-
13. Englishde-
14. Proto-Indo-European*per-der.?
15. Proto-Indo-European*pér
16. Proto-Indo-European*pró
17. Proto-Indo-European*pro-
18. Proto-Italic*pro-
19. Latinprō-
20. Proto-Indo-European*m(y)ewh₁-
21. Proto-Indo-European*m(y)owh₁éyeti
22. Proto-Italic*moweō
23. Latinmoveō
24. Latinprōmoveō
25. Latinprōmōtus
26. English(pro)mote
27. Englishdemoted
28. English todayundemoted

From un- + demoted.