Stage of in this word's full journey.
Where does the word "chair" come from? It comes from Greek kathedra, passing through Latin and Old French before entering English (1200s).
Chair’s story begins in Greek: kathedra meant “seat.” 'kata', down, plus 'hedra', seat; a bishop's throne gave 'cathedral'. By ancient, the word had taken hold in Latin as cathedra. A chair of authority, especially a teacher's. From there it passed into Old French as chaere by medieval. The 'th' sound wore away; a parallel form became French 'chaise'. It reached English by 1200s as chair. Also names the person presiding over a meeting, from where they sat. Today, chair means a seat for one person with a back; the person leading a meeting.