eigenanatomy

The story

1. Proto-Indo-European*h₂eyḱ-
2. Proto-Indo-European*h₂eh₂óyḱe
3. Proto-Germanic*aiganą
4. Proto-Germanic*aiganaz
5. Proto-West Germanic*aigan
6. Old High Germaneigan
7. Middle High Germaneigen
8. Germaneigen
9. Englisheigen-
10. Proto-Indo-European*h₂en-
11. Proto-Hellenic*aná
12. Ancient Greekᾰ̓νᾰ́ (ănắ)
13. Ancient Greekἀνα- (ana-)
14. Proto-Indo-European*temh₁-
15. Ancient Greekτέμνω (témnō)
16. Ancient Greekἀνατέμνω (anatémnō)
17. Ancient Greekἀνατομή (anatomḗ)
18. Latinanatomia
19. Old Frenchanatomie
20. Middle Englishanatomie
21. Englishanatomy
22. English todayeigenanatomy

From eigen- + anatomy.