powerchair

The story

1. Proto-Indo-European*pótis
2. Proto-Italic*potis
3. Proto-Indo-European*h₁es-
4. Proto-Indo-European*h₁ésti
5. Proto-Indo-European*bʰuH-
6. Proto-Indo-European*bʰúHt
7. Proto-Italic*som
8. Proto-Italic*possom
9. Latinposse
10. Vulgar Latinpotēre
11. Old Frenchpooir
12. Anglo-Normanpoer
13. Middle Englishpower
14. Englishpower
15. Proto-Indo-European*ḱe?
16. Proto-Indo-European*ḱóm
17. Proto-Indo-European*ḱm̥-th₂der.?
18. Proto-Hellenic*kətá
19. Ancient Greekκατά (katá)
20. Proto-Indo-European*sed-
21. Proto-Indo-European*sedreh₂
22. Proto-Hellenic*hédrā
23. Ancient Greekἕδρα (hédra)
24. Ancient Greekκᾰθέδρᾱ (kăthédrā)
25. Latincathedra
26. Old Frenchchaiere
27. Middle Englishchayere
28. Englishchair
29. English todaypowerchair

From power + chair.