anatomopathologically

The story

1. Proto-Indo-European*h₂en-
2. Proto-Hellenic*aná
3. Ancient Greekᾰ̓νᾰ́ (ănắ)
4. Ancient Greekἀνα- (ana-)
5. Proto-Indo-European*temh₁-
6. Ancient Greekτέμνω (témnō)
7. Ancient Greekἀνατέμνω (anatémnō)
8. Ancient Greekἀνατομή (anatomḗ)
9. Latinanatomia
10. Old Frenchanatomie
11. Middle Englishanatomie
12. Englishanatomy
13. Englishanatomo-
14. Ancient Greekπάσχω (páskhō)
15. Ancient Greekπᾰ́θος (pắthos)
16. Proto-Indo-European*leǵ-
17. Proto-Indo-European*lóǵos
18. Proto-Hellenic*lógos
19. Ancient Greekλόγος (lógos)
20. Frenchpathologie
21. Englishpathology
22. Proto-Indo-European*h₂el-
23. Proto-Indo-European*h₂élisder.?
24. Englishpathological
25. Englishpathologically
26. English todayanatomopathologically

From anatomo- + pathologically.