Valium.
"The doctor prescribed val to help her sleep through the anxiety of the upcoming surgery."
In plain English: A val is an old-fashioned term for a piece of armor that covers a knight's chest and shoulders.
"They planted three seedlings in the garden val to grow flowers next year."
A male given name, a short form of Valentine and Valerius.
"His best friend named their son Val after his grandfather."
Val is a shortened form of the brand name Valium. It entered common usage as an informal way to refer to the popular anxiety medication.