Interesting words: Obnubilate

Definition:  Obnubilate is a verb meaning "to cloud over" or "obscure".

Pronunciation: Rhymes with rob tube eh late. 

Origin: According to the Online Etymology Dictionary, "obnubilate" comes from Latin obnuliare meaning "to cover with clouds or fog".

Why use it? Obnubilate is just a great sounding word, I think. Much better than its synonyms. Plus, "obscure" is an adjective AND a verb, which can be confusing. And "becloud" doesn't seem like a real word, even though it is.  Sometimes, Latinate words are wonderful to use; one of the joys of English is that we can often choose between words with different origins. "Cloud" for instance, comes from Old English. It's a short word. Obnubilate sounds grander.

Examples: 

There is here fine criticism, classic wit, poetic dreaming, and some grains of sound doctrine, but so obnubilated with the fumes of German metaphysics, that we become giddy.   -  from a book review in The Princeton Review about a book by Samuel Taylor Coleridge (I got this from World Wide Words which has some other examples too).