gonorrheal

The story

1. Proto-Indo-European*ǵenh₁-
2. Proto-Indo-European*ǵónh₁os
3. Ancient Greekγόνος (gónos)
4. Proto-Indo-European*ser-?
5. Proto-Indo-European*srew-
6. Proto-Indo-European*sréweti
7. Proto-Hellenic*hréwō
8. Ancient Greekῥέω (rhéō)
9. Ancient Greekῥοία (rhoía)
10. Ancient Greekγονόρροια (gonórrhoia)
11. Late Latingonorrhoea
12. Englishgonorrhea
13. Proto-Indo-European*h₂el-
14. Proto-Indo-European*h₂élisder.?
15. English todaygonorrheal

From gonorrhea + -al.