Knights of the Pestle or Knights of the Pestle and Mortar
.Apothecaries or druggists, whose chief instrument is the pestle and mortar, used in compounding medicines.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.