pra-ṇi for pra-ni, according to [Pāṇ. viii, 4, 17] before a number of roots, viz. gad (see below), ci, 1. dā, dih, de, do, drā, dhā (see below), dhe, nad (see below), pat (see below), pad, psāmā, me, yam, yā, vap, vah, vā, śam, so, han (see below)
according to [Vop. xii, 1] also before 1. mi.