preplosion

The story

1. Proto-Indo-European*per-
2. Proto-Indo-European*preh₂-
3. Proto-Indo-European*préh₂i?
4. Proto-Italic*prai
5. Proto-Italic*prai-
6. Latinprae-
7. Middle Englishpre-
8. Englishpre-
9. Proto-Indo-European*h₁éǵʰ
10. Proto-Indo-European*h₁éǵʰs
11. Proto-Italic*eks
12. Latinex
13. Latinex-
14. Proto-Indo-European*pleth₂-?
15. Proto-Indo-European*pel-?
16. Proto-Indo-European*pleh₂-
17. Proto-Indo-European*pleh₂-u-h₂-
18. Proto-Indo-European*pleh₂-u-d-
19. Latinplaudō
20. Latinexplōdō
21. Latinexplosiō
22. Latinexplosiōnem
23. Frenchexplosion
24. Englishexplosionclip.
25. Englishplosion
26. English todaypreplosion

From pre- + plosion.