plantocracy

The story

1. Proto-Indo-European*pleth₂-?
2. Proto-Indo-European*pel-?
3. Proto-Indo-European*pleh₂-
4. Proto-Indo-European*pléh₂-n̥t-eh₂
5. Proto-Italic*plāntā?
6. Proto-Indo-European*pleh₂k-
7. Proto-Indo-European*pl̥h₂nk /*gteh₂
8. Proto-Italic*plānktā
9. Latinplanta
10. Proto-West Germanic*plantu
11. Old Englishplante
12. Middle Englishplante
13. Englishplant
14. Proto-Indo-European*kret-
15. Ancient Greekκρᾰ́τος (krắtos)
16. English todayplantocracy

From plant + -o- + -cracy.