chairmaking

The story

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

From chair + making.