Webster’s 1828 DictionaryLintel
The head-piece of a door-frame or window-frame; the part of the frame that lies on the side-pieces. Exodus 12:22.
Easton’s Bible Dictionary
1. Heb. mashkoph, a projecting cover (Exodus 12:22, 23; ver. 7, “upper door post,” but R.V. “lintel”); the head-piece of a door, which the Israelites were commanded to mark with the blood of the paschal lamb.