nūbĭlo — Lewis & Short
nūbĭlo, v. a. and n.nubilum,
I to be cloudy or overcast; to make cloudy, to overcast.
I Lit.:
si nubilare coeperit,Varr. R. R. 1, 13, 5.—
(b) Impers. pass.:
ubi nubilabitur,Cato, R. R. 88, 2.—
B Transf., to be cloudy, dull:
nubilans fulgor carbunculi,Plin. 37, 7, 25, § 94.—
II Trop., to cloud over, to obscure (post-class.):
lucem dei,Paul. Nol. Carm. 10, 37.