overelevation

The story

1. Proto-Indo-European*úp
2. Proto-Indo-European*upér
3. Proto-Germanic*uber
4. Old Englishofer-
5. Middle Englishover-
6. Englishover-
7. Proto-Indo-European*h₁éǵʰ
8. Proto-Indo-European*h₁éǵʰs
9. Proto-Italic*eks
10. Latinex
11. Latinex-
12. Proto-Indo-European*h₁lengʷʰ-
13. Proto-Indo-European*h₁léngʰus
14. Proto-Italic*breɣʷisinflu.
15. Proto-Italic*leɣʷis
16. Latinlevis
17. Latinlevō
18. Latinēlevō
19. Latinēlevātiō
20. Old Frenchelevation
21. Englishelevation
22. English todayoverelevation

From over- + elevation.