A good time to repost this:

The first paragraph of Panofsky's What is Baroque?

The late Scholastic logicians devised amusing helps to memory by which the many forms or figures of syllogism (conclusions from a major and minor premise) could be remembered. These mnemonic devices consisted of words of three syllables partly real and partly made up for the purpose. Each syllable stood for one of the three propositions, and the vowels therein signified the character of these propositions. The vowel a, for instance, denoted a general and positive statement; the vowel o, a partial and negative one. Thus the nice name Barbara, with its three as, designates a syllogism that consists of three general and positive propositions (for instance: 'All men are mortal all mortal beings need food consequently all men need food"). And for a syllogism consisting of one general and positive proposition and two partial and negative ones (for instance: "All cats have whiskers some animals have no whiskers consequently some animals are not cats"), there was coined the word Baroco, containing one a and two os. Either the word, or the peculiarly roundabout fashion of the main of thought denoted by it, or both, must have struck later generations as particularly funny and characteristic of the pedantic formalism to which they objected in medieval thought , and when humanistic writers, including Montaigne, wished to ridicule an unworldly and sterile pedant, they reproached him with having his head full of "Barbara and Baroco," etc. Thus it came about that the word Baroco (French and English Baroque) came to signify everything wildly abstruse, obscure, fanciful, and useless (much as the word intellectual in many circles today). (The other derivation of the term from Latin veruca and Spanish barueca, meaning, originally, a wart and by extension a pearl of irregular shape, is most improbable both for logical and purely linguistic reasons.)