Quaa·lude (kwld)
A trademark used for the drug methaqualone.
Word History: The trademark Quaalude for the sedative and hypnotic agent methaqualone is an example of how a product name is carefully chosen for a positive public response. Methaqualone was developed in the 1960s by William H. Rorer, Inc. At that time, the company's best-known product was Maalox, a digestive aid that derived its name from its ingredients, magnesium and aluminum hydroxides. To enhance the product recognition of their new sedative drug, the company incorporated the aa of Maalox into the name Quaalude. The other elements of the name are presumed to be a contraction of the phrase quiet interlude, a soothing, even poetic description of the drug's effect.
http://www.thefreedictionary.com/Quaalude