Lewis Short
nūbĭlārĭum | nūbĭ-lāre, is (noun N) : (collat. form ‡ , , Inscr. Orell. 4369), nubes
* A shed or barn, in which corn was kept from the rain: aedificium facere oportet, sub quod tectum totam fundi subicere possis messem, quod vocant quidam nubilarium,Varr. R. R. 1, 13, 5; Col. 1, 6, 24; 2, 20, 3; Pall. 1, 36, 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary