anticoherence

The story

1. Proto-Indo-European*h₂ent-
2. Proto-Indo-European*h₂énts
3. Proto-Indo-European*h₂énti
4. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
5. Ancient Greekἀντι- (anti-)
6. Englishanti-
7. Proto-Indo-European*ḱe?
8. Proto-Indo-European*ḱóm
9. Proto-Italic*kom
10. Proto-Italic*kom-
11. Latincon-
12. Latinhaereō
13. Latincohaereō
14. Latincohaerēns
15. Latincohaerentia
16. Middle Frenchcoherence
17. Englishcoherence
18. English todayanticoherence

From anti- + coherence.