enantiodifferentiation

The story

1. Proto-Indo-European*h₁én
2. Ancient Greekἐν (en)
3. Ancient Greekἐν- (en-)
4. Proto-Indo-European*h₂ent-
5. Proto-Indo-European*h₂entíos
6. Proto-Hellenic*antíos
7. Ancient Greekᾰ̓ντῐ́ος (ăntĭ́os)
8. Ancient Greekἐνᾰντῐ́ος (enăntĭ́os)
9. Englishenantio-
10. Proto-Indo-European*dwóh₁
11. Proto-Indo-European*trísinflu.
12. Proto-Indo-European*d(w)is-
13. Proto-Italic*dis-
14. Latindis-
15. Proto-Indo-European*bʰer-
16. Proto-Indo-European*bʰéreti
17. Proto-Italic*ferō
18. Latinferō
19. Latindifferō
20. Latindifferēns
21. Latindifferentia
22. New Latindifferentiō
23. New Latindifferentiātus
24. Englishdifferentiate
25. Englishdifferentiation
26. English todayenantiodifferentiation

From enantio- + differentiation.