microsurgery

The story

1. Proto-Indo-European*mey-der.?
2. Ancient Greekμῑκρός (mīkrós)
3. Ancient Greekμῑκρο- (mīkro-)
4. Englishmicro-
5. Proto-Indo-European*ǵʰes-
6. Proto-Indo-European*ǵʰésōr
7. Proto-Hellenic*kʰéhər
8. Ancient Greekχείρ (kheír)
9. Proto-Indo-European*werǵ-
10. Proto-Indo-European*worǵós
11. Proto-Hellenic*worgós
12. Ancient Greekχειρουργός (kheirourgós)
13. Ancient Greekχειρουργέω (kheirourgéō)
14. Ancient Greekχειρουργίᾱ̆ (kheirourgíā̆)
15. Latinchīrūrgia
16. Old Frenchsurgie
17. Old Frenchsurgerie
18. Middle Englishsurgerie
19. Englishsurgery
20. English todaymicrosurgery

From micro- + surgery.