Forms: 7 lutheran, -en, 8 luthron, 7– luthern. [? A corruption of LUCARNE. Cf. LUTEON.] A dormer-window. Also luthern-light, -window.

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1669.  in Willis & Clark, Cambridge (1886), II. 557. With hansome Lutheran windowes in the roofe.

2

1679.  Moxon, Mech. Exerc., 169. Luthern, See Dormer.

3

1690.  Leybourn, Curs. Math., 901. In measuring of Roofing, seldom any deductions are made for … the Vacancies for Lutheren Lights, and Sky-Lights.

4

1723–24.  Chambers, trans. S. le Clerc’s Archit., I. 109. We call Lutherns, those Windows rais’d over the Corniche of a Building, and in the Roof of the House.

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1751.  Halfpenny, New Designs Farm Houses, 7. 2 Luthron Windows with Cheeks at 9/s. each.

6

1793.  Smeaton, Edystone L., Introd. 5. The inside of the dome … receives light from eight luthern windows regularly disposed.

7

1823.  Nicholson, Pract. Builder, 587. Luthern.

8

1886.  E. L. Bynner, A. Surriage, xv. 167. The gambrel roof and luthern window.

9