A light carriage or chaise. Examples 17531821, N.E.D. Obs. in England, and quite or nearly so in the U.S.
1781. There is a good chair road from Savannah.Advt., Royal Georgia Gazette, Jan. 4.
1816. Instead of a chaise, they [the Virginians] use a chair, which is is very light, but unsocial, as they are usually single.Henry C. Knight (Arthur Singleton), Letters from the South and West, p. 64 (Boston, 1824).
1833. Merchants and professional gentlemen were quite content to keep a one-horse chair.Watson, Historic Tales of Philadelphia, p. 131.