I don't know for sure but most plants can be propogating by cutting or division. Maybe will grow from a root cutting. My wife has a couple but never tried to make new ones. Maybe try go ogling peace lily propogation.
I allready have googled it, and they all/only talk about the root cutting (or some sort of root base mass thing/patato), but i don't want to take it out of the soil if it's not needed.
"A storage organ is a part of a plant specifically modified for storage of energy (generally in the form of carbohydrates) or water. Storage organs often grow underground, where they are better protected from attack by herbivores. Plants that have an underground storage organ are called geophytes in the Raunkiær plant life-form classification system.[1][2] Storage organs often, but not always, act as perennating organs which enable plants to survive adverse conditions (such as cold, excessive heat, lack of light or drought)."