Mormal (n.) - a cancer or gangrene, a disease of the feet and shins.
He koude rooste, and sethe, and broille, and frye,
Maken mortreux, and wel bake a pye.
But greet harm was it, as it thoughte me,
That on his shyne a mormal hadde he.
For blankmanger, that made he with the beste.- Chaucer, Geoffrey: The Canterbury tales (1387-1394)
The Middle-English Word of the Day is selected from Mayhew and Skeat's
"Concise Dictionary of Middle English."
As found on Greg Lindahl's website
http://www.pbm.com/~lindahl/concise/concise.html
The example text was found at the Middle English Collection of the University of Virginia Library.
http://etext.virginia.edu/collections/languages/english/mideng.browse.html