<human>:  Where does the term “entelastic” come from?
<bot>: The word “entelastic” is derived from the Greek word <unk>, which means “skill”. The word “entelastic” means that a force is able to overcome the resistance of a material. For example, if you were to try to lift a rock, you would have to apply a force to overcome the force of gravity. However, if you were to try to lift a bag of flour, you would not need to apply any force because the bag of flour is so light that the force of gravity would be negligible.