Etymology
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methaqualone (n.)

hypnotic sedative drug, 1961, the name is contracted from components of the compound, methyl + quinazolinone.

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Quaalude (n.)

1965, proprietary name (trademark by Wm. H. Rorer Inc., Ft. Washington, Pennsylvania, U.S.A.) of methaqualone used as a sedative drug. The name is said to be based on quiet interlude.

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