nonemotion

The story

1. Proto-Indo-European*né
2. Proto-Germanic*ne
3. Proto-Indo-European*ís?
4. Proto-Indo-European*h₁óynos
5. Proto-Germanic*ainaz
6. Proto-Germanic*nainaz
7. Proto-West Germanic*nain
8. Old Englishnān
9. Middle Englishnon
10. Old Englishnān
11. Old Englishnān-
12. Middle Englishnon-
13. Englishnon-
14. Proto-Indo-European*h₁éǵʰ
15. Proto-Indo-European*h₁éǵʰs
16. Proto-Italic*eks
17. Latinex
18. Latinex-
19. Proto-Indo-European*m(y)ewh₁-
20. Proto-Indo-European*m(y)owh₁éyeti
21. Proto-Italic*moweō
22. Latinmoveō
23. Latinēmoveō
24. Vulgar Latin*exmovēre
25. Old Frenchesmovoir
26. Middle Frenchesmouvoir
27. Middle Frenchemotion
28. Englishemotion
29. English todaynonemotion

From non- + emotion.