Magadhi Prakrit
Awadhi is an Indo-European language and belongs to the Indo-Aryan sub-group of the Indo-Iranian language family. Within the Indo-Aryan dialect continuum, it falls under the East-Central zone of languages and is often recognised as Eastern-Hindi. It's generally believed that an older form of Ardhamagadhi, which agreed partly with Sauraseni and partly with Magadhi Prakrit, could be the basis of Awadhi.