In the chandas (Vedas) the affix ṇiva comes after the verb sah 'to bear' when in composition with a word ending in a case-affix.,
The words 'upasarga' and 'supi' are understood here. As तुर + सह् + ण्वि = तुरासाह् nom. sing. तुराषाट् 'name of Indra'. The dentals स is changed into cerebral ष by 8.3.56, and the ह् into ट by 8.2.31. The final अ of तुर is lengthened by 6.3.137. See Rig. Veda. (I. 175. 2), 3.4.5.,