tĕgillum — Lewis & Short
tĕgillum, i, n.dim.tegulum,
I a small covering, a hood or cowl, Plaut. Rud. 2, 7, 18; Varr. ap. Non. 179, 4; cf.:
tegillum cuculiunculum ex scirpo factum,Fest. p. 366 Müll.