MONITOR

The Latin monere meant to warn; it was the root of our admonish, admonition, etc.; a monitor was the man who did the warning. The term became widely used in early school systems of the senior pupils in a class whose duty it was to instruct his juniors; from this it passed to include the book, the blackboard and other instruments used by him in his teachings. Our use of it carries this last mean-ing; the Masonic Monitor is a book for teaching a candidate the exoteric work.