of nouns సుబంతశబ్దరూపనిష్పత్తి. In the sacscritlanguage English grammarians call nouns ending in అ or ఆ " nounsof the first * " and nouns ending in ఇ and ఉ  are nouns ofthe 2nd * nouns ending in ఈ and ఊ   are " of the Third " *In Telugu grammar words like తమ్ముడు are * of the first *. "All the dictionaries finding it hard to translate have substitutedthe word విభక్తి, which signifies case :"and in the Sanscritnoun there are eight cases in each * .