Lewis Short
parmŭla (noun F) : dim.1. parma
* A little, round shield, a small target.
* Lit.: relictā non bene parmulā,Hor. C. 2, 7, 10; Fest. p. 238 Müll.
* Trop.: parmulam ventilare,Front. Or. Ep. 1 Mai.
Charlton T. Lewis, Charles Short, A Latin Dictionary