hoverchair

The story

1. Englishhover
2. Proto-Indo-European*ḱe?
3. Proto-Indo-European*ḱóm
4. Proto-Indo-European*ḱm̥-th₂der.?
5. Proto-Hellenic*kətá
6. Ancient Greekκατά (katá)
7. Proto-Indo-European*sed-
8. Proto-Indo-European*sedreh₂
9. Proto-Hellenic*hédrā
10. Ancient Greekἕδρα (hédra)
11. Ancient Greekκᾰθέδρᾱ (kăthédrā)
12. Latincathedra
13. Old Frenchchaiere
14. Middle Englishchayere
15. Englishchair
16. English todayhoverchair

From hover + chair.