emotionalistically

The story

1. Proto-Indo-European*h₁éǵʰ
2. Proto-Indo-European*h₁éǵʰs
3. Proto-Italic*eks
4. Latinex
5. Latinex-
6. Proto-Indo-European*m(y)ewh₁-
7. Proto-Indo-European*m(y)owh₁éyeti
8. Proto-Italic*moweō
9. Latinmoveō
10. Latinēmoveō
11. Vulgar Latin*exmovēre
12. Old Frenchesmovoir
13. Middle Frenchesmouvoir
14. Middle Frenchemotion
15. Englishemotion
16. Proto-Indo-European*h₂el-
17. Proto-Indo-European*h₂élisder.?
18. Englishemotional
19. Englishemotionalistic
20. Proto-Indo-European*leyg-
21. Proto-Germanic*līką
22. English todayemotionalistically

From emotionalistic + -ally.