|Easton's Bible Dictionary|
A barrier of open-work placed before windows (Proverbs 7:6). In Judges 5:28 the Hebrew word is rendered "lattice," in the LXX. "network," an opening through which cool air is admitted.
Noah Webster's Dictionary
(n.) A window sash opening on hinges affixed to the upright side of the frame into which it is fitted. (Poetically) A window.
Int. Standard Bible Encyclopedia
Casement (1 Occurrence)
Proverbs 7:6 For at the window of my house I looked through my casement, (KJV WBS YLT)