A coat or jacket encircling the body.

1

1819.  He had, when he escaped, a dark cloth roundabout coat and purple or brown pantaloons.—Missouri Gazette, St. Louis, Feb. 17.

2

1821.  [Ten Cents reward for a runaway black boy, who] had on a drab colored roundabout, wool hat, and grey colored pantaloons.—Pennsylvania Intelligencer, Harrisburg, Jan. 5.

3

1839.  I was dressed in a white roundabout, and trowsers of the same.—Chemung (N.Y.) Democrat, Oct. 2.

4

1850.  He wore a red shirt, and a roundabout, sometimes called a monkey-jacket.—S. Judd, ‘Richard Edney,’ p. 18.

5

a. 1853.  There is no knowing but I may wear a roundabout.—Dow, Jun., ‘Patent Sermons,’ iii. 27.

6