casement window


a window sash opening on hinges that are generally attached to the upright side of its frame.
Also called casement window. a window with such a sash or sashes.
a casing or covering.

1375–1425; late Middle English. See case2, -ment

casemented, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
casement (ˈkeɪsmənt)
1.  a window frame that is hinged on one side
2.  a window containing frames hinged at the side or at the top or bottom
3.  a poetic word for window
[C15: probably from Old Northern French encassement frame, from encasser to frame, encase, from casse framework, crate, case²]

Casement (ˈkeɪsmənt)
Sir Roger (David). 1864--1916, British diplomat and Irish nationalist: hanged by the British for treason in attempting to gain German support for Irish independence

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1430, probably aphetic of O.Fr. dial. enchassement "window frame," from en- "in," prefix forming verbs, + casse "case, frame" (see case (2)) + -ment. Or possibly from Anglo-L. cassementum, from casse. The Irish surname is originally Mc Casmonde (attested from 1429), from Mac
Asmundr, from Ir. mac "son of" + O.N. Asmundr "god protector."
Online Etymology Dictionary, © 2010 Douglas Harper
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Bible Dictionary

Casement definition

a barrier of open-work placed before windows (Prov. 7:6). In Judg. 5:28 the Hebrew word is rendered "lattice," in the LXX. "network," an opening through which cool air is admitted.

Easton's 1897 Bible Dictionary
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Encyclopedia Britannica

casement window

earliest form of movable window, wood or metal framed, with hinges or pivots at the upright side of the vertically hung sash, so that it opens outward or inward along its entire length in the manner of a door. One frame, separately movable, of such a window is called a casement sash.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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