Simplify the following text for a Grade 8 native English-speaking person.
Original: Tripod is a word generally used to refer to a three-legged object , generally one used as a platform of some sort , and comes from the Greek tripous , meaning `` three feet '' .
Simplified: A tripod is a portable three-legged frame , used as a platform for supporting the weight and maintaining the stability of some other object . The word comes from the Greek tripous , meaning `` three feet '' .