The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Latinco-
- Englishco-
- Proto-Indo-European*ḱóm
- Proto-Indo-European*ḱm̥-th₂der.?
- Proto-Hellenic*kətá
- Ancient Greekκατά (katá)
- Proto-Indo-European*sed-
- Proto-Indo-European*sedreh₂
- Proto-Hellenic*hédrā
- Ancient Greekἕδρα (hédra)
- Ancient Greekκᾰθέδρᾱ (kăthédrā)
- Latincathedra
- Old Frenchchaiere
- Middle Englishchayere
- Englishchair
- Latinpersōna
- Anglo-Normanpersoune
- Middle Englishpersoun
- Englishperson
- Englishchairperson
- English todaycochairperson
From co- + chairperson.
Etymology from Wiktionary, CC BY-SA 4.0.