Declension table of ?kathaṃvīrya

Masculine	Singular	Dual	Plural
Nominative	kathaṃvīryaḥ	kathaṃvīryau	kathaṃvīryāḥ
Vocative	kathaṃvīrya	kathaṃvīryau	kathaṃvīryāḥ
Accusative	kathaṃvīryam	kathaṃvīryau	kathaṃvīryān
Instrumental	kathaṃvīryeṇa	kathaṃvīryābhyām	kathaṃvīryaiḥ kathaṃvīryebhiḥ
Dative	kathaṃvīryāya	kathaṃvīryābhyām	kathaṃvīryebhyaḥ
Ablative	kathaṃvīryāt	kathaṃvīryābhyām	kathaṃvīryebhyaḥ
Genitive	kathaṃvīryasya	kathaṃvīryayoḥ	kathaṃvīryāṇām
Locative	kathaṃvīrye	kathaṃvīryayoḥ	kathaṃvīryeṣu

Compound kathaṃvīrya -

Adverb -kathaṃvīryam -kathaṃvīryāt