[f. BAY sb.3 + WINDOW.] ‘A window forming a bay or recess in a room, and projecting outwards from the wall, either in a rectangular, polygonal, or semicircular form; often called a bow-window.’ Parker, Concise Gloss. Archit.
1428. in Heath, Grocers’ Comp. (1869), 6. In the baye wyndowe of the chambre.
1562. J. Heywood, Prov. & Epigr. (1867), 204. All Newgate wyndowes bay wyndowes they bee.
1601. Shaks., Twel. N., V. ii. 40. Why it hath bay Windowes transparant as baricadoes.
1741. Richardson, Pamela (1824), I. 233. The old bay-windows he will have preserved.
1861. Dickens, Gt. Expect., iii. 105. Three stories of bow-window (not bay-window, which is another thing).
Hence Bay-windowed, having bay-windows.
1881. Miss Braddon, Asph., II. 137. An airy bay-windowed drawing room.
1883. Agnes Crane, in Leis. H., 481/2. The ‘bay-windowed’ city of San Francisco.
