underpromote

The story

1. Proto-Indo-European*h₁én
2. Proto-Indo-European*h₁entér
3. Proto-Indo-European*h₂én
4. Proto-Indo-European*dʰeh₁-?
5. Proto-Indo-European*(H)n̥dʰí
6. Proto-Indo-European*(H)n̥dʰér
7. Proto-Germanic*under
8. Proto-West Germanic*undar
9. Old Englishunder-
10. Middle Englishunder-
11. Englishunder-
12. Proto-Indo-European*per-der.?
13. Proto-Indo-European*pér
14. Proto-Indo-European*pró
15. Proto-Indo-European*pro-
16. Proto-Italic*pro-
17. Latinprō-
18. Proto-Indo-European*m(y)ewh₁-
19. Proto-Indo-European*m(y)owh₁éyeti
20. Proto-Italic*moweō
21. Latinmoveō
22. Latinprōmoveō
23. Latinprōmōtus
24. Englishpromote
25. English todayunderpromote

From under- + promote.