Why is a dumb bell called a dumb bell?

The term "dumbbell" originally referred to a bell without a clapper, used for practice by bell ringers to develop strength without producing sound. The "dumb" in "dumbbell" signifies the absence of noise. Over time, the name transitioned to the weights we know today, which resemble the shape of traditional bells but are designed for exercise rather than ringing. Thus, the name reflects both its historical usage and its silent nature during workouts.