goniosynechialysis

The story

1. Proto-Indo-European*ǵónu
2. Proto-Hellenic*gónu
3. Proto-Hellenic*gonwía
4. Ancient Greekγωνίᾱ (gōníā)
5. Englishgonio-
6. Proto-Indo-European*ḱe?
7. Proto-Indo-European*ḱómder.?
8. Proto-Indo-European*sem-der.?
9. Proto-Hellenic*ksún
10. Ancient Greekσύν (sún)
11. Ancient Greekσυν- (sun-)
12. Proto-Indo-European*seǵʰ-
13. Proto-Hellenic*hékʰō
14. Ancient Greekἔχω (ékhō)
15. Ancient Greekσυνέχω (sunékhō)
16. Ancient Greekσυνεχής (sunekhḗs)
17. Ancient Greekσῠνέχειᾰ (sŭnékheiă)
18. Englishsynechia
19. Proto-Indo-European*lewh₁-
20. Ancient Greekλύω (lúō)
21. Ancient Greekλῠ́σῐς (lŭ́sĭs)
22. English todaygoniosynechialysis

From gonio- + synechia + -lysis.