phytogeography

The story

1. Proto-Indo-European*bʰuH-
2. Proto-Indo-European*bʰuHyéti
3. Ancient Greekφῠ́ω (phŭ́ō)
4. Ancient Greekφῠτός (phŭtós)
5. Ancient Greekφῠτόν (phŭtón)
6. Englishphyto-
7. Proto-Hellenic*gaya
8. Ancient Greekγαῖᾰ (gaîă)clip.
9. Ancient Greekγῆ (gê)
10. Ancient Greekγεω- (geō-)
11. Proto-Indo-European*gerbʰ-
12. Proto-Hellenic*grə́pʰō
13. Ancient Greekγράφω (gráphō)
14. Ancient Greekγεωγρᾰ́φος (geōgrắphos)
15. Ancient Greekγεω- (geō-)
16. Ancient Greekγρᾰ́φω (grắphō)
17. Ancient Greekγραφή (graphḗ)
18. Ancient Greekγεωγρᾰφῐ́ᾱ (geōgrăphĭ́ā)
19. Latingeōgraphia
20. Middle Frenchgéographie
21. Englishgeography
22. English todayphytogeography

From phyto- + geography.