umbella, ae, f. dim. [umbra] (a little shadow, i. e. meton.),
a sunshade , parasol , umbrella , Mart. 14, 28 in lemm.; 11, 73, 6; Juv. 9, 50.
umbella ae, f dim.umbra, a sunshade, parasol, umbrella , Iu. ...
An Elementary Latin Dictionary