nubilate

Borrowed from Latin nūbilātus, perfect passive participle of nūbilō (“to cloud”) (see -ate (verb-forming suffix)), from nūbila (“clouds”).

nubilate (third-person singular simple present nubilates, present participle nubilating, simple past and past participle nubilated)

1. (obsolete, rare) To cloud or obscure [c. 1697–1801]

• “nubilate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• antiblue, unitable, untiable