nonphenomenological

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*bʰeh₂-
15. Proto-Indo-European*bʰh₂nyéti
16. Proto-Hellenic*pʰáňňō
17. Ancient Greekφαίνω (phaínō)
18. Ancient Greekφαινόμενον (phainómenon)
19. Late Latinphaenomenon
20. Englishphenomenon
21. Proto-Indo-European*leǵ-
22. Proto-Indo-European*lóǵos
23. Proto-Hellenic*lógos
24. Ancient Greekλόγος (lógos)
25. Englishphenomenology
26. Proto-Indo-European*h₂el-
27. Proto-Indo-European*h₂élisder.?
28. Englishphenomenological
29. English todaynonphenomenological

From non- + phenomenological.