prostatic

The story

1. Proto-Indo-European*per-der.?
2. Proto-Indo-European*pér
3. Proto-Indo-European*pró
4. Ancient Greekπρό (pró)
5. Ancient Greekπρο- (pro-)
6. Proto-Indo-European*steh₂-
7. Proto-Indo-European*stísteh₂ti
8. Proto-Hellenic*hístāmi
9. Ancient Greekἵστημι (hístēmi)
10. Ancient Greekπροΐστημι (proḯstēmi)
11. Ancient Greekπροστάτης (prostátēs)
12. Medieval Latinprostata
13. Middle Frenchprostate
14. Englishprostate
15. English todayprostatic

From prostate + -ic.