Jain Prakrit is a term loosely used for the language of the Jain Agamas (canonical texts). The books of Jainism were written in the popular vernacular dialects (as opposed to Sanskrit which was the classical standard of Brahmanism), and therefore encompass a number of related dialects. Chief among these is Ardha Magadhi ("Half Magadhi"), which due to its extensive use has also come to be identified as the definitive form of Prakrit. Other dialects include versions of Maharashtri and Sauraseni.
The "Aabhidhan Rajendra Kosh" written by Acharya Rajendrasuri, is the only available Jain encyclopedia for understanding the Jain Prakrit, Sanskrit, Ardha-Magadhi and other Jain languages words.
Read more about Jain Prakrit: Pali and Ardha-Magadhi