Targe (n.) - a small shield [interestingly, a small targ was a "target"].
Upon an amblere esily she sat,
Ywympled wel, and on hir heed an hat
As brood as is a bokeler or a targe;
A foot-mantel aboute hir hipes large,
And on hir feet a paire of spores sharpe.
- 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
The example text was found at the Middle English Collection of the University of Virginia Library.