<human>:  Where does the term “entelastic” come from?
<bot>: The word “entelastic” is derived from the Greek word <unk>, which means “skill”. The term “entelastic” refers to a type of material that is elastic and has a low modulus of elasticity. This type of material can stretch and return to its original shape, which is useful for making things like ropes, bows, and catapults.